table of contents - mathacle.commathacle.com/mathpset/sat/sat-practice-book-2009... · table of...
TRANSCRIPT
TABLE of CONTENTS
SAT Practice Book
2009-2010
11
1. Properties of integers
2. Number Lines and Fractions
3. Elementary Number Theory(Divisibility)
4. Sequences
5. Sets
6. Ratio, Proposition, and Percents.
7. Exponents, Squares, and Square Roots
8. Word problems
9. Factoring
10. Mean, Median, and Mode
11. Solving Equations and Rational Equations
12. Direct Variation and Inverse Variation
13. Inequalities
14. System of Linear Equations
15. Solving Quadratic Equations
16. Functions
17. Made Up Operations
18. Coordinates Geometry
19. Parallel Lines and Angles
20. Triangles
21. Polygons
22. Circles
23. Solid Geometry
24. Statistics, Data and Graph
25. Probabilities
1
PROPERTIES of INTEGERS �
SAT Practice Book
2009-2010
11
1. If x is an integer greater than 1 and if
xxy11
x , which of the following must be
true?
I. y x
II. y is an integer.
III. xy > x2
(A) I only
(B) III only
(C) I and II only
(D) I and III only
(E) I, II, and III
2. If x and y are positive consecutive odd
integers, where y > x, which of the
following is y2 – x2?
(A) 2x
(B) 4x
(C) 2x + 2
(D) 2x + 4
(E) 4x + 4
3. If x, y, and z are positive integers such
that the value of x + y is even and the
value of (x + y) 2 + x + z is odd, which of
the following must be true?
(A) x is odd.
(B) x is even.
(C) If z is even, then x is odd.
(D) If z is even, then xy is even.
(E) xy is even.
4. If n is any negative number, which of
the following must be positive?
(A) 2
n
(B) 2n
(C) n + 2
(D) n – 2
(E) 2 – n
5. If k is a positive even integer, then
(k+1)(k+2) could equal which of the
following?
(A) 10
(B) 20
(C) 30
(D) 40
(E) 50
6. Which of the following must be true for
all integers a,b, and c ?
I. a- 0 =a
II. a-b=b-a
III. (a-b)-c=a- (b-c)
(A) I only
(B) II only
(C) III only
(D) I and II
(E) II and III
2
PROPERTIES of INTEGERS �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. If a, b, and c are positive integers, and if
(a−c)b=0, which of the following must
be true?
(A) a<b
(B) b<c
(C) a =b
(D) a=c
(E) b=c
8. If a is an odd integer and b is an even
integer, which of the following is an odd
integer?
(A) 3b
(B) a+3
(C) 2(a+b)
(D) a+2b
(E) 2a+ b
9. If (p+1) (t-3) =0 and p is positive, what is
the value of t?
(A) -3
(B) -1
(C) 0
(D) 1
(E) 3
10.If 2
33x is an integer, then x must be
(A) a negative integer
(B) a positive integer
(C) a multiple of 3
(D) an even integer
(E) an odd integer
3
NUMBER LINES & FRACTIONS �
SAT Practice Book
2009-
2010
11
1.
Which of the lettered points on the
number line above could represent the
result when the coordinate of point P
is multiplied by the coordinate of point
Q?
(A) A
(B) B
(C) C
(D) D
(E) E
2.
On the number line above, there are 9
equal intervals between 0 and 1. What
is the value of x?
3.
On the number line above, t, u, v, w, x,
y, and z are coordinates of the
indicated points. Which of the
following is closest in value to
|u + v| ?
(A) t
(B) w
(C) x
(D) y
(E) z
4.
On the number line above, which of
the following corresponds to wu w ?
(A) t
(B) v
(C) x
(D) y
(E) z
2
17
2
37
5. What number, when used in place of
above, makes the statement true?
(A) 4
(B) 5
(C) 9
(D) 12
(E) 15
6. The numerator of a certain fraction is
5 less than the denominator. If the
fraction is equal to 4
3, what is the
denominator of this fraction?
(A) 8
(B) 12
(C) 16
(D) 20
(E) 24
4
NUMBER LINES & FRACTIONS �
SAT Practice Book
2009-
2010
2
2009-
2010
2
7.
In the figure above, AC = 24 and
AB = BC. Point D (not shown) is on the
line between A and B such that
AD = DB. What does DC equal?
(A) 6
(B) 12
(C) 16
(D) 18
(E) 20
8. If x =2
1 , what is the value of
1
11
1xx?
(A) –4
(B) 0
(C) 1
(D) 2
(E) 3
9. Which of the following numbers is
between 5
1and
4
1?
(A) 0.14
(B) 0.15
(C) 0.19
(D) 0.21
(E) 0.26
10.
If x, x2, and x3 lie on a number line in
the order shown above, which of the
following could be the value of x?
(A) –2
(B) 2
1
2
1
(C) 4
3
(D) 1
(E) 2
3
11.
On the number line above, the tick
marks are equally spaced. What is the
value of w – p ?
(A) 3/4
(B) 2/3
(C) 1/2
(D) 1/3
(E) 1/4
5
NUMBER LINES & FRACTIONS �
SAT Practice Book
2009-
2010
3
2009-
2010
3
12.
On the number line above, the tick
marks are equally spaced. Which of
the lettered points represents y ?
(A) A
(B) B
(C) C
(D) D
(E) E
13.
Which of the following is the best
estimate of the length of segment AB on
the number line above?
(A) 4
(B) 3.5
(C) 3
(D) 1.5
(E) 1
14.
In the figure above, if the coordinates
of points X and Y are added together,
the result will be the coordinate of a
point between which two consecutive
integers?
(A) −3 and −2
(B) −2 and −1
(C) −1 and 0
(D) 0 and 1
(E) 2 and 3
15.
On the number line above, the tick
marks are equally spaced. What is the
value of b−a?
(A) 4/5
(B) 3/4
(C) 2/5
(D) 1/4
(E) 1/5
6
NUMBER LINES & FRACTIONS �
SAT Practice Book
2009-
2010
4
2009-
2010
4
16.
If the tick marks on the number line
above are equally spaced, which of the
lettered points A through E is between
1/4 and 3/8?
(A) A
(B) B
(C) C
(D) D
(E) E
17.
If x is the coordinate of the indicated point
on the number line above, which of the
lettered points has coordinate 2x ?
(A) A
(B) B
(C) C
(D) D
(E) E
18. If 3 times a number is equal to 3/2,
what is the number?
(A) 1/3
(B) 1/2
(C) 2/3
(D) 2
(E) 3
19.
On the number line above, the tick
marks are equally spaced and their
coordinates are shown. Of these
coordinates, which has the smallest
positive value?
(A) a
(B) b
(C) c
(D) d
(E) e
7
DIVISIBILITY �
SAT Practice Book
2009-2010
11
1. There are 8 sections of seats in an
auditorium. Each section contains at
least 150 seats but not more than 200
seats. Which of the following could be
the number of seats in this
auditorium?
(A) 800
(B) 1,000
(C) 1,100
(D) 1,300
(E) 1,700
2. “All numbers that are divisible by both
2 and 6 are also divisible by 4.”
Which of the following numbers can be
used to show that the statement above
is FALSE?
(A) 4
(B) 8
(C) 12
(D) 18
(E) 24
3. If m is the greatest prime factor of 38
and n is the greatest prime factor of
100, what is the value of m + n ?
(A) 7
(B) 12
(C) 24
(D) 29
(E) 44
4. If p is an integer and 3 is the
remainder when 2p + 7 is divided by 5,
then p could be
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
5. When 15 is divided by the positive
integer k, the remainder is 3. For how
many different values of k is this true?
(A) One
(B) Two
(C) Three
(D) Four
(E) Five
6. How many cubical blocks, each with
edges of length 4 centimeters, are
needed to fill a rectangular box that
has inside dimensions 20 centimeters
by 24 centimeters by 32 centimeters?
(A) 38
(B) 96
(C) 192
(D) 240
(E) 384
8
DIVISIBILITY �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. What is the greatest three–digit
integer that has a factor of 10?
8. If there is no waste, how many square
yards of carpeting is needed to cover a
rectangular floor that is 12 feet by 18
feet?
(1 yard = 3 feet)
(A) 8
(B) 16
(C) 24
(D) 30
(E) 216
9.
If x is divisible by 3 and y is divisible
by 5, which of the following must be
divisible by 15?
I. xy
II. 3x + 5y
III. 5x + 3y
(A) I only
(B) III only
(C) I and II only
(D) I and III only
(E) I, II, and III
10.How many integers greater than 20
and less than 30 are each the product
of exactly two different numbers, both
of which are prime?
(A) Zero
(B) One
(C) Two
(D) Three
(E) Four
11. If the integer m is divided by 6, the
remainder is 5. What is the remainder
if 4m is divided by 6 ?
(A) 0
(B) 1
(C) 2
(D) 4
(E) 5
12. A large solid cube is assembled by
gluing together identical unpainted
small cubic blocks. All six faces of the
large cube are then painted red. If
exactly 27 of the small cubic blocks
that make up the large cube have no
red paint on them, how many small
cubic blocks make up the large cube?
9
DIVISIBILITY �
SAT Practice Book
2009-
2010
3
2009-2010
3
13. When the positive integer n is divided
by 6, the remainder is 2. What is the
remainder when 24n is divided by 36 ?
14. If k is a positive integer divisible by 7,
and if k < 90, what is the greatest
possible value of k ?
(A) 83
(B) 84
(C) 87
(D) 88
(E) 89
15. There are 6 bookcases in a house.
Each bookcase contains at least 125
books but not more than 160 books.
Which of the following could be the
total number of books in all 6
bookcases?
(A) 500
(B) 625
(C) 725
(D) 925
(E) 1,000
16. Which of the following is divisible by 3
and by 5 but is not divisible by 10 ?
(A) 30
(B) 35
(C) 40
(D) 45
(E) 60
17. When the positive integer m is
divided by 5, the remainder is 3. What
is the remainder when 20m is divided
by 25?
18. For what positive number is the
square root of the number the same as
the number divided by 40?
19. The result when a number is divided
by 2 is equal to the result when that
same number is divided by 4. What is
that number?
(A) -4
(B) -2
(C) 0
(D) 2
(E) 4
20. What is the product of the smallest
prime number that is greater than 50
and the greatest prime number that is
less than 50?
10
SEQUENCES �
SAT Practice Book
2009-2010
11
1. –1, 0, 1, 2
A sequence is formed by repeating the
4 numbers above in the same order
indefinitely. What is the sum of the
first 28 terms of the sequence?
(A) 12
(B) 13
(C) 14
(D) 15
(E) 16
2. Rita’s dog weighed 5 pounds when she
bought it. Over the next several years,
the dog’s weight increased by 10
percent per year. Which of the
following functions gives the weight,
w, in pounds, of the dog after n years
of weight gain at this rate?
(A) w(n) = 5 + 0.1n
(B) w(n) = 5(0.1) n
(C) w(n) = 5(0.9) n
(D) w(n) = 5(1.1) n
(E) w(n) = 5(n) 1.1
3. Each month, a telephone service
charges a base rate of $10.00 and an
additional $0.08 per call for the first
40 calls and $0.04 for every call after
that. How much does the telephone
service charge for a month in which 50
calls are made?
(A) $12.20
(B) $12.80
(C) $13.60
(D) $14.40
(E) $17.60
y, 2y + 7, y + 6 . . .
4. In the increasing sequence above, the
first term is y and the difference
between any two consecutive terms is
3. What is the value of the fourth term
in the sequence?
(A) –4
(B) 2
(C) 5
(D) 13
(E) 19
5. In a sequence of numbers, the first
number is 4 and each number after the
first is 1 more than 5 times the
preceding number. What is the third
number in the sequence?
(A) 16
(B) 21
(C) 94
(D) 96
(E) 106
6. The first term of a sequence is 3, and
each term after the first is 2 more than
the previous term. Which of the
following is an expression for the nth
term of the sequence for any positive
integer n?
(A) 2n
(B) 1+2n
(C) 2+2n
(D) 3+2n
(E) 2+3n
11
SEQUENCES �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. The nth term of a sequence is defined
to be 4n + 3. The 50th term is how
much greater than the 45th term?
(A) 5
(B) 16
(C) 20
(D) 23
(E) 24
8. After the first term in a sequence of
positive integers, the ratio of each
term to the term immediately
preceding it is 2 to 1. What is the ratio
of the 8th term in this sequence to the
5th term?
(A) 6 to 1
(B) 8 to 5
(C) 8 to 1
(D) 64 to 1
(E) 256 to 1
4, 11, 18, . . .
9. In the sequence above, the first term is
4 and each term after the first is 7
more than the previous term. What is
the 12th term of the sequence?
(A) 77
(B) 81
(C) 84
(D) 86
(E) 92
10. 3, 5,–5...
The first term in the sequence of
numbers shown above is 3. Each even–
numbered term is 2 more than the
previous term and each odd–numbered
term, after the first, is –1 times the
previous term. For example, the
second term is 3 + 2, and the third
term is (–1) × 5. What is the 55th term
of the sequence?
(A) –5
(B) –3
(C) –1
(D) 3
(E) 5
11.The sum of 5 consecutive integers is
1,000. What the value of the greatest
of these integers?
12. 5.101001000100001 …
The decimal number above consists of
only 1 ‘ s and 0’s to the right of the
decimal point. The first 1 is followed
by one 0, the second 1 is followed by
two 0’ s, the third 1 is followed by
three 0’ s, and so on. What is the total
number of 0’s between the 98th and
the 101st 1 in this decimal number?
(A) 288
(B) 291
(C) 294
(D) 297
(E) 300
12
SEQUENCES �
SAT Practice Book
2009-
2010
3
2009-2010
3
13. a, 3a, ...
The first term in the sequence above is
a, and each term after the first is 3
times the preceding term. If the sum of
the first 5 terms is 605, what is the
value of a?
14. 7, 15, 31, 63, ...
The first term in the sequence above is
7, and each term after the first is
determined by multiplying the
preceding term by m and then adding
p. What is the value of m?
(A) 1
(B) 2
(C) 3
(D) 4
(E) 9
15. Z W Y X
The sequence above may be changed in
either of two ways. Either two
adjacent letters may be interchanged
or the entire sequence may be
reversed. What is the least number of
such changes needed to put the letters
into alphabetical order from left to
right?
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
16. After the first term, each term in a
sequence is 3 greater than 3
1 of the
preceding term. If t is the first term of
the sequence and t ≠ 0, what is the
ratio of the second term to the first
term?
(A) 3
99t
(B) 3
33t
(C) t
t
3
99
(D) t
t
3
33
(E) 3
29 t2
17. 8, 17, 26, 35, 44, ...
The first 5 terms in a sequence are
shown above. Each term after the first
is found by adding 9 to the term
immediately preceding it. Which term
in this sequence is equal to
8 + (26 – 1)9?
(A) The 8th
(B) The 9th
(C) The 25th
(D) The 26th
(E) The 27th
13
SEQUENCES �
SAT Practice Book
2009-
2010
4
2009-2010
4
18.What is the greatest of 5 consecutive
integers if the sum of these integers
equals 185?
19. 2, 6, 14, 30, ...
In the sequence above, the first term
is 2. Each number after the first is
obtained by adding 1 to the
preceding number and then doubling
the result. What is the sixth number
in the sequence?
(A) 122
(B) 123
(C) 124
(D) 125
(E) 126
20.“The sum of three consecutive odd
integers is 111. “
If n represents the least of the three
integers, which of the following
equations represents the statement
above?
(A) 3n = 111
(B) 3n + 2 = 111
(C) 3n + 4 = 111
(D) 3n + 6 = 111
(E) 3n + 9 = 111
21.The first term of a sequence is 20 and
the second term is 8. The third term
and each term thereafter is the
average (arithmetic mean) of the two
terms immediately preceding it. What
is the value of the first term in the
sequence that is not an integer?
22. The nth term of a sequence is given by
the formula .22 nn 2 How much larger
is the 10th term of the sequence than
the 9th term?
23. 150, 30, 6,…
In the sequence above, each term after
the 1st term is 5
1of the term preceding
it. What is the 5th term of this
sequence?
14
SETS �
SAT Practice Book
2009-2010
11
1. How many positive four-digit integers
have 1 as their first digit and 2 or 5 as
their last digit?
(A) 144
(B) 180
(C) 200
(D) 300
(E) 720
2. In the figure above, circular region P
represents shirts with pockets,
circular region Q represents shirts
with buttons, and circular region R
represents shirts with collars. What is
represented by the shaded region?
(A)Shirts with pockets, buttons, and
collars
(B) Shirts with pockets and buttons,
but without collars
(C) Shirts with pockets and buttons
(some possibly with collars)
(D) Shirts with pockets and collars
(some possibly with buttons)
(E) Shirts with buttons and collars
(some possibly with pockets)
3. P = 6,5,3,1
Q = 9,7,6,4,2
Sets P and Q are shown above. If x is a
member of set P and y is a member of
set Q, which of the following CANNOT
be equal to the product xy ?
(A) 16
(B) 18
(C) 20
(D) 21
(E) 24
4. How many positive integers less than
1,000 are multiples of 5 and are equal
to 3 times an even integer?
15
SETS �
SAT Practice Book
2009-
2010
2
2009-2010
2
5. The Lyndhurst High School twelfth
graders are represented in the circle
graph in Figure 1. Figure 2 is another
way to illustrate the use of computers
by these twelfth graders. If the same
200 twelfth graders are represented in
both figures, what is the total number
of twelfth graders represented by the
shaded circle in Figure 2 ?
6. A set has property X if tt t2 is in the
set whenever t is in the set. Which of
the following sets has property X ?
(A) 0,1,2 ,12
(B) 0,11
(C) 1,0,11
(D) 1,0
(E) 2,1
7. Which of the following is an element of
both the set of positive odd integers
and the set of prime numbers?
(A) 2
(B) 5
(C) 9
(D) 12
(E) 21
16
SETS �
SAT Practice Book
2009-
2010
3
2009-2010
3
8. Students at Northern High School are
represented in Figure 1 above. Figure
2 above is another way to show which
pets these students have. If the same
500 students are represented in both
figures, what is the total number of
students represented by the shaded
circle in Figure 2 ?
9. Some integers in set X are even.
If the statement above is true, which
of the following must also be true?
(A) If an integer is even, it is in set X.
(B) If an integer is odd, it is in set X.
(C) All integers in set X are even.
(D) All integers in set X are odd.
(E) Not all integers in set X are odd.
7,2
11,4,
2
5,1,
7
4A , 7,4,
4
7,
7
4B
10. If n is a member of both set A and set
B above, which of the following must
be true?
I. n is an integer.
II. 4n is an integer.
III. n = 4
(A) None
(B) II only
(C) I and II only
(D) I and III only
(E) I, II, and III
17
SETS �
SAT Practice Book
2009-
2010
4
2009-2010
4
11.If A is the set of prime numbers and B
is the set of two-digit positive integers
whose units digit is 5, how many
numbers are common to both sets?
(A) None
(B) One
(C) Two
(D) Five
(E) Nine
12. There are 25 trays on a table in the
cafeteria. Each tray contains a cup
only, a plate only, or both a cup and a
plate. If 15 of the trays contain cups
and 21 of the trays contain plates, how
many contain both a cup and a plate?
13.The least integer of a set of
consecutive integers is –25. If the sum
of these integers is 26, how many
integers are in this set?
(A) 25
(B) 26
(C) 50
(D) 51
(E) 52
14.Set X has x members and set Y has y
members. Set Z consists of all
members that are in either set X or set
Y with the exception of the k common
members (k > 0). Which of the
following represents the number of
members in set Z?
(A) x + y + k
(B) x + y – k
(C) x + y + 2k
(D) x + y – 2k
(E) 2x + 2y – 2k
15.If E is the set of even integers, P is the
set of positive integers, and F is the set
of integers less than 5, which of the
following integers will be in all three
sets?
(A) 6
(B) 4
(C) 1
(D) 0
(E)–2
16.If 80 8x and 31 31 y , which of
the following gives the set of all
possible values of xy?
(A) xy = 4
(B) 240 24xy
(C) 111 111 xy
(D) 241 241 xy
(E) 248 248 xy
18
SETS �
SAT Practice Book
2009-
2010
5
2009-2010
5
17.How many integers in the set of all
integers from 1 to 100, inclusive, are
not the square of an integer?
(A) 19
(B) 50
(C) 81
(D) 89
(E) 90
18.In a set of eleven different numbers,
which of the following CANNOT affect
the value of the median?
(A) Doubling each number
(B) Increasing each number by 10
(C) Increasing the smallest number
only
(D) Decreasing the largest number
only
(E) Increasing the largest number only
.
19. Set X = {30, 31, 32, 33}
Set Y = {32, 33, 34, 35, 36}
Sets X and Y are shown above. How
many numbers in set X are also in
set Y ?
(A) Two
(B) Three
(C) Four
(D) Seven
(E) Nine
20.If k is a positive integer, let be
defined as the set of all multiples of k.
All of the numbers in which of the
following sets are also in all three of
the sets , and ?
(A)
(B)
(C)
(D)
(E)
19
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-2010
11
1. Which of the following tables shows a
relationship in which w is directly
proportional to x?
(A) (B)
(C) (D)
(E)
2. Dwayne has a newspaper route for
which he collects k dollars each day.
From this amount he pays out 3
k
dollars per day for the cost of the
papers, and he saves the rest of the
money. In terms of k, how many days
will it take Dwayne to save $1,000?
(A) 5001,
k (B)
0001,
k
(C) k
0001, (D)
k
5001,
(E) 1,500k
3. If 3
2
3
2
y
x , what is the value of
y
x
2
3?
(A) 3
1
(B) 3
2
(C) 1
(D) 2
3
(E) 4
9
4. If 30 percent of 40 percent of a positive
number is equal to 20 percent of w
percent of the same number, what is
the value of w?
(A) 80
(B) 60
(C) 50
(D) 15
(E) 10
20
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-
2010
2
2009-2010
2
5. There are 75 more women than men
enrolled in Linden College. If there are
n men enrolled, then, in terms of n,
what percent of those enrolled are
men?
(A) 7575n
n%
(B) 752 75n
n%
(C) )( 752100 75n
n%
(D) 75
100
75n
n%
(E) 752
100
75n
n%
6. The eggs in a certain basket are either
white or brown. If the ratio of the
number of white eggs to the number of
brown eggs is 3
2 , each of the following
could be the number of eggs in the
basket EXCEPT
(A) 10
(B) 12
(C) 15
(D) 30
(E) 60
7. The price of a telephone was first
increased by 10 percent and then the
new price was decreased by 25
percent. The final price was what
percent of the initial price?
(A) 78%
(B) 80%
(C) 82.5%
(D) 85%
(E) 87.5%
8. The force required to stretch a spring
beyond its natural length is
proportional to how far the spring is
being stretched. If a force of 15 pounds
stretches a spring 8 centimeters
beyond its natural length, what force,
in pounds, is needed to stretch this
spring 20 centimeters beyond its
natural length?
(A) 23
(B) 27
(C) 30.5
(D) 35
(E) 37.5
21
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-
2010
3
2009-2010
3
9. A measuring cup contains 5
1of a cup of
orange juice. It is then filled to the 1
cup mark with a mixture that contains
equal amounts of orange, grapefruit,
and pineapple juices. What fraction of
the final mixture is orange juice?
10.If a + 2b is equal to 125 percent of 4b,
what is the value of b
a ?
11. In a poll, 35 people were in favor of
building a new library, 14 people were
against it, and 1 person had no
opinion. What fraction of those polled
were in favor of building a new
library?
(A) 10
7
(B) 3
2
(C) 7
3
(D) 3
1
(E) 10
3
12. If 20 percent of x equals 80 percent of
y, which of the following expresses y in
terms of x?
(A) y = 16% of x
(B) y = 25% of x
(C) y = 60% of x
(D) y = l00% of x
(E) y = 400% of x
13. If a, b, c and f are four nonzero
numbers, then all of the following
proportions are equivalent EXCEPT
(A) c
b
f
a b
(B) a
b
c
f b
(C) b
f
a
c
b
f
(D) f
b
c
a
f
b
(E) 1
1
1
1
bc
af
14.When the positive even integer n is
increased by 50 percent of itself, the
result is between 10 and 20. What is
one possible value of n?
22
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-
2010
4
2009-2010
4
15. If a
xx 2
4
2 and x ≠ 0, what is the value
of a?
(A) 8
(B) 4
(C) 2
(D) 2
1
(E) 4
1
16. One circle has a radius of 2
1and
another circle has a radius of 1. What
is the ratio of the area of the larger
circle to the area of the smaller circle?
(A) 2 : 1
(B) 3 : 1
(C) 3 : 2
(D) 4 : 1
(E) 5 : 2
17.The ratio 1.2 to 1 is equal to which of
the following ratios?
(A) 1 to 2
(B) l2 to l
(C) 5 to 6
(D) 6 to 5
(E) 6 to 50
18. If 30 percent of m is 40, what is 15
percent of m?
(A) 15
(B) 20
(C) 25
(D) 30
(E) 35
23
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-2010
11
1. If 12
10 b
a 12, what is the value of ab?
2. The price of ground coffee beans is d
dollars for 8 ounces and each ounce
makes c cups of brewed coffee. In
terms of c and d, what is the dollar
cost of the ground coffee beans
required to make 1 cup of brewed
coffee?
(A) c
d
8 (B)
8
cd
(C) d
c8 (D)
c
d8
(E) 8cd
3.
The circle graph above represents all
the jeans that were sold by a retail
store in 2001, according to
their brands. If the store sold 900
pairs of jeans other than brands J, K,
L, M, and N, how many pairs of jeans
did it sell altogether?
(A) 1,500 (B) 2,250
(C) 3,000 (D) 3,600
(E) 4,500
4. The Smith Metal Company’s old
machine makes 300 bolts per hour. Its
new machine makes 450 bolts per
hour. If both machines begin running
at the same time, how many minutes
will it take the two machines to make
a total of 900 bolts?
(A) 36
(B) 72
(C) 120
(D) 144
(E) 180
5. If y =z
x35, what happens to the value
of y when both x and z are doubled?
(A) y is not changed.
(B) y is halved.
(C) y is doubled.
(D) y is tripled.
(E) y is multiplied by 4.
6. If n is a positive integer and2
1
2
1
2
11
n
n,
then n =?
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
24
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. If y is directly proportional to x2 and
8
1
8
1y when
2
1
2
1x what is the positive
value of x when 2
9
2
9y ?
(A) 4
3
(B) 2
3
(C) 4
9
(D) 3
(E) 9
8.
If the five line segments in the figure
above are all congruent, what is the
ratio of the length of AC (not shown) to
the length of BD ?
(A) 2 to 1
(B) 3 to1
(C) 2 to 2
(D) 3 to 2
(E) 3 to 2
9.
The chart above shows the results
when 1,000 people were asked, “How
old are you?” The age they gave is
represented by x. How many people
said that their age was less than 40?
(A) 200
(B) 300
(C) 450
(D) 500
(E) 550
10. 37
39
2 37
39
2x
x, then x = ?
(A) 37
(B) 39
(C) 41
(D) 74
(E) 78
25
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-
2010
3
2009-2010
3
11. From 1979 to 1989, the total elephant
population in the four regions of Africa
decreased by approximately what
percent?
(A) 10%
(B) 30%
(C) 50%
(D) 70%
(E) 90%
12. If n
1 =
5
2, what is the value of n ?
13.
In a survey, 3,400 people responded to the
following question: “How many weeks of
vacation did you take last year?” Their
responses to the question are summarized in
the chart above, where n equals the number
of vacation weeks indicated. How many
respondents took more than 2 weeks of
vacation last year?
14. A box contains 2,900 solid-colored
marbles that are either orange, blue,
or green. If 29 percent of the marbles
are orange and 29 percent of the
marbles are blue, what percent are
green?
(A) 29%
(B) 42%
(C) 52%
(D) 58%
(E) 71%
15. What is the ratio of the radius r of a
circle to the circumference of the
circle?
(A) 1: 2
(B) 1:
(C) 1: r
(D) :1
(E) 2 :1
16. Fifty percent of the songs played on a
certain radio station are 3 minutes
long, 30 percent are 5 minutes long,
and 20 percent are 2 minutes long.
What is the average (arithmetic mean)
number of minutes per song played on
this radio station
26
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-
2010
4
2009-2010
4
17. If tr
tr
t
t =
2
5 what is the value of
t
r ?
(A) - 3
7
(B) - 1
(C) 7
3
(D) 1
(E) 3
7
18. If q and r are positive numbers, what
percent of (q + 1) is r ?
(A) )1(100
1
1qr %
(B) r
q
100
11 %
(C)r
q )1(100 1 %
(D) ( q
r100 + 1 ) %
(E) 1
100
1q
r %
27
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-2010
11
1. If 4
3)25( 32 m = 6 what is the value of
m ?
2. If r is directly proportional to s and if
S = 3
2 when r =
5
4, what is the value
of r when s = 9
4?
3. If 7.5 is x percent of 75, what is x
percent of 10 ?
(A) 10
(B) 1
(C) 0.75
(D) 0.1
(E) 0.075
4. If 1
1
1x =
2
1 what is the value of x ?
(A) 2
(B) 1
(C) 0
(D) - 1
(E) - 2
5. A box of staples contains 4,600
staples that are either silver, black, or
red. If 46 percent of the staples are
silver and 46 percent are black, what
percent are red?
(A) 8%
(B) 18%
(C) 46%
(D) 54%
(E) 92%
6. The original price of a book was b
dollars. This price was discounted x
percent during a sale. James used a
coupon to buy the book for t percent off
the sale price. Which of the following
represents the price, in dollars,
that James paid for the book?
(A) b 100
1x
1001
t
(B) b100
)1)(1( tx
(C) b100
1tx
(D) b100
1xt
(E) b100
x
100
t
28
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-
2010
2
2009-2010
2
7.
Students at Northern High School are
represented in Figure 1 above. Figure 2
above is another way to show which pets
these students have. If the same 500
students are represented in both figures,
what is the total number of students
represented by the shaded circle in
Figure 2 ?
8. If the value of -t
1 is twice the value
of t
1 , what is the value of t ?
9. What is the ratio of the diameter d of
a circle to half the circumference of the
circle?
(A) 1 : 2
(B) 1 :
(C) 2 :
(D) : 1
(E) 2 : 1
10. If y is directly proportional to x and if
y = 20 when x = 6, what is the value of
y when x = 9 ?
(A) 3
10
(B) 3
40
(C) 23
(D) 27
(E) 30
29
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-
2010
3
2009-2010
3
11. Flour, water, and salt are mixed by
weight in the ratio of 5:4:1,
respectively, to produce a certain type
of dough. In order to make 5 pounds of
this dough, what weight of salt, in
pounds, is required?
(A) 4
1 (B)
2
1
(C) 4
3 (D) 1
(E) 2
12.If 0.03 percent of n is 3, what is 3
percent of n ?
(A) 900
(B) 600
(C) 300
(D) 0.006
(E) 0.003
13. If Marisa drove n miles in t hours,
which of the following represents her
average speed, in miles per hour?
(A) t
n (B)
n
t
(C)nt
1 (D) nt
(E) n 2 t
14. If 75 percent of m is equal to k
percent of 25, where k > 0, what is the
value of k
m?
(A) 16
3
(B) 3
1
(C) 4
3
(D) 3
(E) 3
16
15. If ba
yx
b
y =
3
2, then
ba
yx
1010
99
10
9= ?
(A) 10
9
(B) 23
20
(C) 27
20
(D) 3
2
(E) 5
3
16. 30
RATIO, PROPORTION & PERCENTS �
SAT Practice Book
2009-
2010
4
2009-2010
4
The circle graph above shows how
David’s monthly expenses are divided.
If David spends $450 per month for
food, how much does he spend per
month on his
car?
(A) $200
(B) $320
(C) $360
(D) $400
(E) $450
17. In a certain store, the regular price of
a refrigerator is $600. How much
money is saved by buying this
refrigerator at 20 percent off the
regular price rather than buying it on
sale at 10 percent off the regular price
with an additional discount of 10
percent off the sale price?
(A) $6
(B) $12
(C) $24
(D) $54
(E) $60
18.
According to the graph above, if there are
6,000 registered voters aged 60 and over
in Washington County, how many
registered voters are under the age of 30 ?
(A) 1,000
(B) 2,000
(C) 3,000
(D) 4,000
(E) 5,000
31
EXPONENTS, SQUARES & SQUARE ROOTS�
SAT Practice Book
2009-2010
11
1. 22x = 8x–1, what is the value of x?
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
2. If 24x = 16, then x =?
(A) 1
(B) 2
(C) 4
(D) 8
(E) 12
3. If 351335t , what is the value of 3
4t ?
4. If trr1818 , where r and t are
positive integers and r > t, which of the
following could be the value of rt?
(A) 18
(B) 36
(C) 108
(D) 162
(B) 324
5. Positive integers x, y, and z satisfy the
equations 3
12
1
3
12
1
x and 161zy . If z > y
what is the value of x + z?
(A) 5
(B) 7
(C) 11
(D) 13
(E) 15
6. 2233 )( xx (
For what value of x is the statement
above FALSE?
(A) –3
(B) 0
(C) 3
1
(D) 1
(E) For no value of x
7. If x and y are positive consecutive odd
integers, where y > x, which of the
following is y2 – x2?
(A) 2x
(B) 4x
(C) 2x + 2
(D) 2x + 4
(E) 4x + 4
32
EXPONENTS, SQUARES & SQUARE ROOTS �
SAT Practice Book
2009-
2010
2
2009-2010
2
8. If m and k are positive and
mkm 100101210
1 , what is 11m in terms of
k?
(A) 10
k
(B) 90
k
(C) 10
k
(D) k10
1
(E) k90
1
9. If 8 + k = 15, then k = ?
(A) 7
(B) 49
(C) 529
(D) 7
(E) 23
10.If a, b, and c are different positive
integers and 64222 6422cba , then
??cba222
(A) 14
(B) 17
(C) 21
(D) 28
(E) 34
11.If a and b are positive integers and
432
6
3
1
2
1
43
6
ba , what is the value of ab?
(A) 6
(B) 12
(C) 18
(D) 24
(E) 36
12.If xy = 10, what is the value of 22 y
y
xy ?
(A) 5
(B) 8
(C) 10
(D) 12
(E) 20
13.If 93 yx y what is x in terms of y?
(A) y
(B) y2
(C) y3
(D) y6
(E) y12
33
EXPONENTS, SQUARES & SQUARE ROOTS �
SAT Practice Book
2009-
2010
3
2009-2010
3
14. 39 39 xx
For all values of x greater than 3, the
equation above is equivalent to which
of the following?
(A) x = x2
(B) x = x2 + 18
(C) x = x2 – 6x
(D) x = x2 – 6x + 9
(E) x = x2 – 6x + 18
15. If k, n, x, and y are positive numbers
satisfying 23
4
23
4
kx and 23
4
ny n ,
what is 3
2
3
2
)(xy in terms of n and k?
(A) nk
1
(B) k
n
(C) n
k
(D) nk
(E) 1
16.If 287 mmm x mm and 155 mm y m)( , what is
the value of x + y?
(A) 7
(B) 12
(C) 14
(D) 24
(E) 31
17.If 722222 2222
xxxx , what is the value
of x?
18.If k is a positive integer, what is the
least value of k for which 3
5k is an
integer?
(A) 3
(B) 5
(C) 15
(D) 25
(E) 60
19.If n is a positive integer, then
)()( nn nn ( 101106 must equal
(A) 10
7
(B) n
10
7
(C) n2
10
7
(D) n
10
6
(E) n2
10
6
34
EXPONENTS, SQUARES & SQUARE ROOTS �
SAT Practice Book
2009-
2010
4
2009-2010
4
20.If x and y are positive integers andyx224 2 , what is x in terms of y?
(A) y – 2
(B) y – 1
(C) y
(D) y + 1
(E) y + 2
21. If 16 = 2 k what is the value of k?
(A) 1
(B) 2
(C) 3
(D) 4
(E) 8
35
EXPONENTS, SQUARES & SQUARE ROOTS�
SAT Practice Book
2009-2010
11
1. If x = 5 y and y = z + 1, what is 5
x in
terms of z ?
(A) z
(B) z + 1
(C) 5 z
(D) 5 z +1
(E) 5 11z
2. If k is a positive integer, which of the
following is equivalent to 3 k + 3 k ?
(A) 2 3 k
(B) 3 k2
(C) 6 k
(D) 6 k2
(E) 9 k2
3. If 7 10 = 7 7 n what is the value of n?
(A) 10
(B) 9
(C) 7
(D) 5
(E) 3
4. If 2 y = 8 and y = 2
x what is the value
of x ?
(A) 6
(B) 5
(C) 4
(D) 3
(E) 2
5. If x 2 − 64 = 0, which of the following
could be a value of x?
(A) −8
(B) −4
(C) 0
(D) 16
(E) 32
6. If a and b are positive integers and
9(3 a ) = 3 b what is a in terms of b ?
(A) b − 2
(B) b − 1
(C) b
(D) b + 1
(E) b + 2
36
EXPONENTS, SQUARES & SQUARE ROOTS �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. If y is a positive integer, and
3 y − 7 = 8, what is the value of y ?
8. If a 22 = 4, which of the following could
be the value of a ?
(A) −2
(B) −4
1
(C) 0
(D) 4
1
(E) 2
1
9. If x 2 - 36 = 0, which of the following
could be a value of x ?
(A) -6
(B) -4
(C) 0
(D) 3
(E) 12
10. If x and y are integers such that x 2 =
64 and y 3 = 64 , which of the following
could be true?
I. x = 8
II. y = -4
III. x + y = -4
(A) I only
(B) II only
(C) I and III only
(D) II and III only
(E) I, II, and III
11.If x 11 h = 1, what does h equal in terms
of x ?
(A) -x
(B) x
1
(C)2
1
x
(D) x
(E) x 2
12. If 7 n 7 3 7 12 , what is the value of
n ?
(A) 2
(B) 4
(C) 9
(D) 15
(E) 36
37
EXPONENTS, SQUARES & SQUARE ROOTS �
SAT Practice Book
2009-
2010
3
2009-2010
3
13. If x is a positive integer satisfying
x 7 = k and x 9 = m, which of the following
must be equal to x 11 ?
(A) k
m2
(B) m 2 - k
-
(C) m 2 - 7
(D) 2k - 3
m
(E) k + 4
14. If n and k are positive integers and 8 n
= 2 k , what is the value of k
n ?
(A) 4
1
(B) 3
1
(C) 2
1
(D) 3
(E) 4
15. If t is a number greater than 1, then t 2
is how much greater than t ?
(A) 1
(B) 2
(C) t
(D) t (t − 1)
(E) (t − 1)(t + 1)
16. If (x – 2) 2 = 49, then x could be
(A) -9
(B) -7
(C) 2
(D) 5
(E) 9
38
WORD PROBLEMS �
SAT Practice Book
2009-2010
11
1. There are 8 sections of seats in an
auditorium. Each section contains at
least 150 seats but not more than 200
seats. Which of the following could be
the number of seats in this
auditorium?
(A) 800
(B) 1,000
(C) 1,100
(D) 1,300
(E) 1,700
2. If 4 less than 3 times a certain number
is 2 more than the number, what is the
number?
(A) –1
(B) –3
(C) 1
(D) 2
(E) 3
3. During a game, the blue team scored
one–sixth of its points in the first
quarter, one–fourth in the second
quarter, one–third in the third
quarter, and the remaining points in
the fourth quarter. If its total score
was 36, how many points did the blue
team score in the fourth quarter?
(A) 6
(B) 8
(C) 9
(D) 12
(E) 25
4. At a bottling company, machine A fills
a bottle with spring water and
machine B accepts the bottle only if
the number of fluid ounces is between
8
711 and
8
112 . If machine B accepts a
bottle containing n fluid ounces, which
of the following describes all possible
values of n?
(A) 8
112
8
112n
(B) 8
112
8
112n
(C) 8
112
8
112n
(D) 8
112
8
112n
(E) 8
112
8
112n
5. Esther drove to work in the morning
at an average speed of 45 miles per
hour. She returned home in the
evening along the same route and
averaged 30 miles per hour. If Esther
spent a total of one hour commuting to
and from work, how many miles did
Esther drive to work in the morning?
39
WORD PROBLEMS �
SAT Practice Book
2009-
2010
2
2009-2010
2
6. Schedule
I
n
t
h
e
s
c
hedule above, each session is to be 2
11
hours long, each break is to be 4
1 hour
long, and lunch is to be 1 hour long. If
session IV is to end at 4:30 P.M., at
what time should session I begin?
(A) 8:15 A.M.
(B) 8:30 A.M.
(C) 8:45 AM.
(D) 9:00 A.M.
(E) 9:15 A.M.
7. Carlos delivered n packages on
Monday, 4 times as many packages on
Tuesday as on Monday, and 3 more
packages on Wednesday than on
Monday. What is the average
(arithmetic mean) number of packages
he delivered per day over the three
days?
(A) 2n – 3
(B) 2n – 1
(C) 2n + 1
(D) 2n + 3
(E) 6n + 1
8. 5.101001000100001 …
The decimal number above consists of
only 1 ‘ s and 0’s to the right of the
decimal point. The first 1 is followed
by one 0, the second 1 is followed by
two 0’ s, the third 1 is followed by
three 0’ s, and so on. What is the total
number of 0’s between the 98th and
the 101st 1 in this decimal number?
(A) 288
(B) 291
(C) 294
(D) 297
(E) 300
9. There is the same number of boys and
girls on a school bus when it departs
from school. At the first stop, 4 boys
get off the bus and nobody gets on.
After the first stop, there are twice as
many girls as boys on the bus. How
many girls are on the bus?
(A) 4
(B) 6
(C) 8
(D) 12
(E) 16
10. Stacy noted that she is both
the12th tallest and the 12th shortest
students in her class. If everyone in
the class is of the different height, how
many students are in the class?
(A) 22
(B) 23
(C) 24
(D) 25
(E) 34
Event Beginning
Time
Ending
Time
Session I ?
Break
Session II
Lunch
Session III
Break
Session IV 4:30 P.M.
40
WORD PROBLEMS �
SAT Practice Book
2009-
2010
3
2009-2010
3
11. A total of k passengers went on a
bus trip. Each of the n buses that were
used to transport the passengers could
seat a maximum of x passengers. If
one bus had 3 empty seats and the
remaining buses were filled, which of
the following expresses the
relationship among n, x, and k?
(A) nx – 3 = k
(B) nx + 3 = k
(C) n + x + 3 = k
(D) nk = x + 3
(E) nk = x – 3
12. The numerator of a certain
fraction is 5 less than the
denominator. If the fraction is equal to
4
3, what is the
denominator of this fraction?
(A) 8
(B) 12
(C) 16
(D) 20
(E) 24
13. A family of 5 is planning a 4–day
camping trip. Each person will need to
bring 1 bottle of water for each day of
the trip. If the water is sold only in 3–
bottle packages, how many packages
must the family buy for the trip?
14. A measuring cup contains 5
1of a cup of
orange juice. It is then filled to the 1 cup
mark with a mixture that contains equal
amounts of orange, grapefruit, and pineapple
juices. What fraction of the final mixture is
orange juice?
15. When Ms. Yun arrived at the grocery
store, there were 5 packages of hot dog rolls
left on the shelf. One package contained 12
rolls, and each of the others
contained 8 rolls. If Ms. Yun bought all 5
packages, how many hot dog rolls did she
purchase at the store?
(A) 32
(B) 36
(C) 44
(D) 48
(E) 52
16. How old was a person exactly 1 year ago
if exactly x years ago the person was y years
old?
(A) y – 1
(B) y – x – 1
(C) x – y –1
(D) y + x + 1
(E) y + x – 1
41
WORD PROBLEMS �
SAT Practice Book
2009-
2010
4
2009-2010
4
17. When it is noon eastern standard
time (EST) in New York City, it is 9:00
AM. Pacific standard time (PST) in San
Francisco. A plane took off from New
York City at noon EST and arrived in
San Francisco at 4:00 P.M. PST on the
same day. If a second plane left San
Francisco at noon PST and took exactly
the same amount of time for the trip,
what was the plane’s arrival time (EST)
in New York City?
(A) 10:00 P.M.EST
(B) 9:00 P.M. EST
(C) 7:00 P.M. EST
(D) 6:00 P.M. EST
(E) 4:00 P.M. EST
18. Todd is older than Marta but
younger than Susan. If t, m, and s
represent the ages, in years, of Todd,
Marta, and Susan, respectively, which
of the following is true?
(A) m < t < s
(B) s < m < t
(C) s < t < m
(D) t < m < s
(E) t < s < m
19. A school ordered $600 worth of light
bulbs. Some of the light bulbs cost $1
each and the others cost $2 each. If
twice as many $1 bulbs as $2 bulbs
were ordered, how many light bulbs
were ordered altogether?
20. When twice a number is decreased
by 3, the result is
253. What is the number?
21. h(t) = c – (d – 4t)2
At time t = 0, a ball was thrown upward
from an initial height of 6 feet. Until the
ball hit the ground, its height, in feet,
after t seconds was given by the
function h above, in which c and d are
positive constants. If the ball reached
its maximum height of 106 feet at time t
= 2.5, what was the height, in feet, of
the ball at time t = 1?
22. Bobby receives $2 for each chore he
does during the week, plus a weekly
allowance of $10. If Bobby receives no
other money, which of the following
expressions represents the total dollar
amount Bobby receives for a week in
which he has done n chores?
(A) 10 + n
(B) (10 + 2)n
(C) 10n + 2
(D) 10 + 2n
(E) (10 + n)2
42
WORD PROBLEMS �
SAT Practice Book
2009-
2010
5
2009-2010
5
23. A computer program randomly
selects a positive two–digit integer. If
the integer selected is odd, twice that
integer is printed. If the integer selected
is even, the integer itself is printed. If
the integer printed is 26, which of the
following could have been the integer
selected?
I. 13
II. 26
III. 52
(A) I only
(B) II only
(C) I and II only
(D) I and III only
(E) I, II and III
24. How many seconds are there in m
minutes and s seconds?
(A) 60m + s
(B) m + 60s
(C) 60(m + s)
(D) 60
sm s
(E) sm
s60
25. Kyle’s lock combination consists of 3
two–digit numbers. The combination
satisfies the three conditions below.
One number is odd.
One number is a multiple of 5.
One number is the day of the
month of Kyle’s birthday.
If each number satisfies exactly one
of the conditions, which of the
following could be the combination to
the lock?
(A) 14 – 20 – 13
(B) 14 – 25 – 13
(C) 15 – 18 – 16
(D) 20 – 15 – 20
(E) 34 – 30 – 21
26. Phillip used four pieces of masking
tape, each 6 inches long, to put up each of
his posters. Phillip had a 300–foot roll of
masking tape when he started. If no tape
was wasted, which of the following
represents the number feet of masking
tape that was left on the roll after he
put up n posters? (12 inches = 1 foot)
(A) 300 – 6n
(B) 300 – 2n
(C) 300 – n
(D) 300 – n2
1
(E) 300 – n4
1
43
WORD PROBLEMS �
SAT Practice Book
2009-2010
11
1. A number n is increased by 5 and the
result is multiplied by 5. This result is
decreased by 5. Finally, that result is
divided by 5. In terms of n, what is the
final result?
2. In a certain game, points are assigned to
every word. Each q, x, and z in a word is
worth 5 points, and all other letters are
worth 1 point each. What is the sum of the
points assigned to the word “exquisite”?
(A) 21
(B) 17
(C) 16
(D) 13
(E) 9
3. A certain scale only registers weights
that are greater than 6 pounds. A person
who wanted to know the weights of a
puppy, a kitten, and a bunny weighed
them in pairs and got the following
results.
The kitten and the bunny weighed 7 pounds.
The kitten and the puppy weighed 8 pounds.
The bunny and the puppy weighed 9 pounds.
What is the weight of the puppy?
(A) 2 pounds
(B) 3 pounds
(C) 4 pounds
(D) 5 pounds
(E) 6 pounds
4. The scenic route from Mia’s home to her
office is 5 kilometers longer than the direct
route. When she goes by the scenic route and
returns by the direct route, the round trip is
35 kilometers. How many kilometers is the
direct route?
(A) 5
(B) 2
112
(C) 15
(D) 20
(E) 2
122
5. For a certain hot–water heater, the
increase in heating expenses is directly
proportional to the increase in water–
temperature setting. If heating expenses
increase by $24 when the water–
temperature setting is increased by 20
degrees Fahrenheit, by how much will
heating expenses increase when the
water–temperature setting is increased
by 15 degrees Fahrenheit?
(A) $16
(B) $18
(C) $19
(D) $20
(E) $21
6. If Peg traveled 10 miles in 2 hours and
Linda traveled twice as far in half the
time, what was Linda’ s average speed,
in miles per hour?
(A) 5
(B) 10
(C) 20
(D) 30
(E) 40
44
WORD PROBLEMS �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. If the product of 0.3 and a number is
equal to 1, what is the number?
8. A company sells boxes of balloons in
which the balloons are red, green, or
blue. Luann purchased a box of balloons
in which 3
1of them were red. If there
were half as many green balloons in the
box as red ones and 18 balloons were
blue, how many balloons were in the box?
9. Alice and Corinne stand back-to-back.
They each take 10 steps in opposite
directions away from each other and
stop. Alice then turns around, walks
toward Corinne, and reaches her in 17
steps. The length of one of Alice’s steps is
how many times the length of one of
Corinne’s steps? (All of Alice’s steps are
the same length and all of Corinne’s
steps are the same length.)
10.If 3 more than n is a negative number
and if 5 more than n is a positive
number, which of the following could be
the value of n?
(A) –5
(B) –4
(C) –3
(D) 0
(E) 4
11.If all men in the Williams family are over
six feet tall, which of the following
statements must be true?
(A) No man under six feet tall is a
member of the Williams family.
(B) All men over six feet tall are
members of the Williams family.
(C) All men who are not members of the
Williams, family are under six feet tall.
(D) Every member of the Williams family
over six feet tall is a man.
(E) There is one man in the Williams
family under six feet tall.
12.The total cost of 3 equally priced
mechanical pencils is $4.50. If the cost
per pencil is increased by $0.50, how
much will 5 of these pencils cost at the
new rate?
(A) $7.50
(B) $8.00
(C) $9.00
(D) $9.50
(E) $10.00
13.Car A traveled 60 miles and averaged 20
miles per gallon of gasoline. If car B
traveled 15 miles
for each gallon of gasoline it used, how
many miles had car B traveled
when it had used the same amount of
gasoline that car A used to travel 60
miles?
45
WORD PROBLEMS �
SAT Practice Book
2009-
2010
3
2009-2010
3
14. At Maple Creek High School, some
members of the chess club are on the
swim team and no members of the swim
team are tenth graders. Which of the
following must also be true?
(A) No members of the chess club are
tenth graders.
(B) Some members of the chess club
are tenth graders.
(C) Some members of the chess club
are not tenth graders.
(D) More tenth graders are on the
swim team than are in the chess
club.
(E) More tenth graders are in the
chess club than are on the swim
team.
15.To celebrate a colleague’s graduation, the
m coworkers in an office agreed to
contribute equally to a catered lunch that
costs a total of y dollars. If p of the
coworkers fail to contribute, which of the
following represents the additional
amount, in dollars, that each of the
remaining coworkers must contribute to
pay for the lunch?
(A)m
y
(B) pm
y
p
(C) pm
py
p
(D) m
pmy )( p
(E) )( pmm
py
p
16.While driving on a 500-mile trip, Mr.
Smith averages 60 miles per hour for the
first t hours. In terms of t, where
t < 8, how many miles remain to be
traveled?
(A) 60t − 500
(B) 500 − 60t
(C) 30,000 − t
(D) 500 − t
60
(E) t60
500
17.By 7:00 P.M., 3
1 of the junior class had
arrived at a school dance. By 8:00 P.M.,
30 more juniors had arrived, raising
attendance to 2
1 of the junior class. How
many people are in the junior class?
(A) 30
(B) 90
(C) 120
(D) 180
(E) 240
46
WORD PROBLEMS �
SAT Practice Book
2009-
2010
4
2009-2010
4
18.The total cost of a taxicab ride is the sum
of
(1) a basic fixed charge for using the
taxicab, and
(2) an additional charge for each 4
1 of a
mile that is traveled.
If the total cost to ride 4
3 mile is $4.00
and the total cost to ride 12
1 miles is
$5.50, what is the total cost, in dollars, of
a 3-mile ride?
(Disregard the $ sign when gridding your
answer. If, for example, your answer is
$1.37, grid 1.37)
19.Classified ads cost $2.50 per 30 words at
CityNewspaper. What is the least
number of words that must be deleted
from the text of a 75-word classified ad to
reduce the cost to $5.00 or less?
(A) 5
(B) 15
(C) 20
(D) 30
(E) 60
20.Which of the following represents the total
cost, in dollars, of k compact discs at $15
each and p compact disc cases at $25 each?
(Disregard sales tax.)
(A) 15k + 25p
(B) 25k + 15p
(C) 40(k + p)
(D) 0.40(k + p)
(E) (15 + k)(25 + p)
21. If x and y are two different integers and
the product 35xy is the square of an
integer, which of the following could be
equal to xy?
(A) 5
(B) 70
(C) 105
(D) 140
(E) 350
22.An amusement park charges $7 more for
an adult’s admission than for a child’s
admission. If a group of 4 adults and 3
children spent $119 on admission, what
is the price of admission for one child?
(A) $11
(B) $13
(C) $16
(D) $17
(E) $18
47
WORD PROBLEMS �
SAT Practice Book
2009-
2010
5
2009-2010
5
23. The figure above shows four apartments
in a building. In this building, each
apartment is occupied by only one
person. Alice lives next to Sam, and Paul
lives next to Alice and Dara. In which
apartment could Alice live?
(A) 1 only
(B) 2 only
(C) 3 only
(D) 2 or 3
(E) 1 or 4
24.A community college charges an activity
fee of $4.00 per student and has a
student body of 8,200 students. If every
student pays the fee, what is the total
amount in activity fees collected from the
students?
(A) $32.80
(B) $328.00
(C) $3,280.00
(D) $32,800.00
(E) $328,000.00
48
WORD PROBLEMS �
SAT Practice Book
2009-2010
11
1. Each month, a telephone service charges
a base rate of $10.00 and an additional
$0.08 per call for the first 40 calls and
$0.04 for every call after that. How much
does the telephone service charge for a
month in which 50 calls are made?
(A) $12.20
(B) $12.80
(C) $13.60
(D) $14.40
(E) $17.60
2. How many 4
1-pound sticks of butter
together weigh as much as 25 pounds of
butter?
3. The total cost of 5 equally priced
notebooks is $12.50. If the cost per
notebook is reduced by $1, how much will
3 of these notebooks cost at the new rate?
(A) $4.50
(B) $5.00
(C) $6.50
(D) $7.50
(E) $9.50
4. When the number k is multiplied by 5,
the result is the same as when 5 is added
to k. What is the value of 4k?
(A) 5
4
(B) 1
(C) 4
5
(D) 4
(E) 5
5. The bus fare from city A to city B is $5
more for adults than for children. If a
group of 5 adults and 6 children pay a
total of $124 to travel by bus from city A
to city B, what is the cost of the ticket for
one adult?
(A) $11
(B) $12
(C) $14
(D) $16
(E) $17
6. Which of the following represents the
total cost, in dollars, of x rolls of
wrapping paper that cost $6 each and y
greeting cards that cost $2 each?
(A) 2x + 6y
(B) 6x + 2y
(C) 8(x + y)
(D) 0.8(x + y)
(E) (2 + x) (6 + y)
49
WORD PROBLEMS �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. Jamal has some coins in his pocket.
Some of these coins are quarters, and
none of the quarters in his pocket are
dated earlier than 2000. Which of the
following must be true?
(A) None of the coins in Jamal’s pocket
are dated earlier than 2000.
(B) Some of the coins in Jamal’s pocket
are dated earlier than 2000.
(C) Some of the coins in Jamal’s pocket
are dated 2000 or later.
(D) Most of the coins in Jamal’s pocket
are either quarters or dated earlier than
2000.
(E) Most of the coins in Jamal’s pocket
are not quarters.
8. There are 6 bookcases in a house. Each
bookcase contains at least 125 books but
not more than 160 books. Which of the
following could be the total number of
books in all 6 bookcases?
(A) 500
(B) 625
(C) 725
(D) 925
(E) 1,000
9. The city library donated some children’s
books to Mr. Clark’s first-grade class. If
each student takes 4 books, there will be
20 books left. If 3 students do not take a
book and the rest of the students take 5
books each, there will be no books left.
How many books were donated to the
class?
(A) 120
(B) 140
(C) 160
(D) 175
(E) 185
10.Bernardo drives to work at an average
speed of 50 miles per hour and returns
along the same route at
an average speed of 25 miles per hour. If
his total travel time is 3 hours, what is
the total number of
miles in the round-trip?
(A) 225
(B) 112.5
(C) 100
(D) 62.5
(E) 50
11.When a certain number is multiplied by
4
1 and the product is then multiplied by
32, the result is 60. What is the number?
50
WORD PROBLEMS �
SAT Practice Book
2009-
2010
3
2009-2010
3
12. An object thrown upward from a height
of h feet with an initial velocity of v feet
per second will reach a maximum height
of h+ 64
2v feet. If the object is thrown
upward from a height of 6 feet with an
initial velocity of 32 feet per second, what
will be its maximum height, in feet?
13.On Monday morning Mr. Smith had a
certain amount of money that he planned
to spend during the week. On each
subsequent morning, he had one fourth
the amount of the previous morning. On
Saturday morning, 5 days later, he had
$1. How many dollars did Mr. Smith
originally start with on Monday
morning?
(Disregard the $ sign when gridding
your answer.)
14.Ali, Ben, and Carla made a total of 20
sandwiches. Ben made 3 times as many
as Ali, and Carla made twice as many as
Ben. How many sandwiches did Ali
make?
(A) Two
(B) Four
(C) Five
(D) Six
(E) Ten
15.If Marisa drove n miles in t hours, which
of the following represents her average
speed, in miles per hour?
(A) t
n
(B) n
t
(C) nt
1
(D) nt
(E) n2t
16. Morgan’s plant grew from 42
centimeters to 57 centimeters in a year.
Linda’s plant, which was 59 centimeters
at the beginning of the year, grew twice
as many centimeters as Morgan’s plant
did during the same year. How tall, in
centimeters, was Linda’s plant at the end
of the year?
17.Since the beginning of 1990, the number
of squirrels in a certain wooded area has
tripled during every 3-year period of
time. If there were 5,400 squirrels in the
wooded area at the beginning of 1999,
how many squirrels were in the wooded
area at the beginning of 1990?
51
WORD PROBLEMS �
SAT Practice Book
2009-
2010
4
2009-2010
4
18.The result when a number is divided by 2
is equal to the result when that same
number is divided by 4. What is that
number?
(A) -4
(B) -2
(C) 0
(D) 2
(E) 4
19. All of Kay’s brothers can swim.
If the statement above is true, which of the
following must also be true?
(A) If Fred cannot swim, then he is not
Kay’s brother.
(B) If Dave can swim, then he is not Kay’s
brother.
(C) If Walt can swim, then he is Kay’s
brother.
(D) If Pete is Kay’s brother, then he cannot
swim.
(E) If Mark is not Kay’s brother, then he
cannot swim.
20. When her son’s class held its magazine
drive, Dr. Nelson bought 7 one-year
magazine subscriptions for the waiting room
in her office. She bought
4 subscriptions that have 12 issues per year,
2 subscriptions that have 4 issues per year,
and 1 subscription that has 52 issues per
year. Altogether, how many magazines will
her office receive from these subscriptions?
52
FACTORING �
SAT Practice Book
2009-2010
11
1. If a + 2(x + 1) = s, what is x + 1, in
terms of s and a?
(A) a
s
2
(B) 2
as a
(C) 2
as a
(D) as
a2
(E) as
a2
2. If x2+y2 = 73 and xy = 24, what is the
value of (x + y)2?
(A) 73
(B) 97
(C) 100
(D) 121
(E) 144
3. If 2
1
2
1
2
1
)()( baba , which of the
following must be true?
(A) b = 0
(B) a + b = 1
(C) a – b = 1
(D) a2 + b2 = 1
(E) a2 – b2 = 1
4. If x2 – y2 = 77 and x + y = 11, what is
the value of x?
(A) 10
(B) 9
(C) 8
(D) 7
(E) 6
5. If a, b, and c are different positive
integers and 64222 6422cba , then
??cba222
(A) 14
(B) 17
(C) 21
(D) 28
(E) 34
6. If (2x – 2)(2 – x) = 0, what are all the
possible values of x?
(A) 0 only
(B) 1 only
(C) 2 only
(D) 1 and 2 only
(E) 0, 1, and 2
53
FACTORING �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. If a and b are positive integers and
a2 – b2 = 7, what is the value of a?
(A) 3
(B) 4
(C) 5
(D) 6
(E) 7
8. If x2 – y2 = 10 and x + y = 5, what is the
value of x – y?
9. If xy = 7 and x – y = 5, then
x2y – xy2 =?
(A) 2
(B) 12
(C) 24
(D) 35
(E) 70
10.If 2x + z = 2y and 2x + 2y + z = 20,
what is the value of y?
(A) 5
(B) 8
(C) 10
(D) 15
(E) It cannot be determined from the
information given.
11. if
dcxbxaxxxx dcxbxaxxxx 2323
90
1
30
1
10
1
for all values of x, where a,b,c, and d are
constants, what is the value of
a+b+c+d ?
12. 3(x-7)(x-2)=k
In the equation above, k is a constant. If the
roots of the equation are 7 and 2, what is the
value of k?
(A) 0
(B) 2
(C) 3
(D) 7
(E) 14
54
FACTORING �
SAT Practice Book
2009-
2010
3
2009-2010
3
13. If 2x − 64 = 0, which of the following could
be a value of x?
(A) −8
(B) −4
(C) 0
(D) 16
(E) 32
14. If n is a positive odd integer, then
(n+1)(n+2) could equal which of the
following?
(A) 10
(B) 15
(C) 20
(D) 25
(E) 30
15. If x and y are numbers such that
(x+9)(y−9)=0, what is the smallest possible
value of 22 yx y ?
(A) 0
(B) 9
(C) 18
(D) 81
(E) 162
16. If (x+5) y= 2x −x+13, what is the value of y
When x = 2?
17. If (w−2) 2 =0, what is the value of
(w+3)(w+4)=?
(A) 30
(B) 12
(C) 7
(D) −1
(E) It cannot be determined from the
information given.
18. If x 2 +x=30, which of the following is a
possible value of x 2 x?
(A) -30
(B) 10
(C) 20
(D) 30
(E) 870
55
MEAN, MEDIAN & MODE �
SAT Practice Book
2009-2010
11
1. Carlos delivered n packages on
Monday, 4 times as many packages on
Tuesday as on Monday, and 3 more
packages on Wednesday than on
Monday. What is the average
(arithmetic mean) number of packages
he delivered per day over the three
days?
(A) 2n – 3
(B) 2n – 1
(C) 2n + 1
(D) 2n + 3
(E) 6n + 1
2. If the average (arithmetic mean) of x
and y is k, which of the following is the
average of x, y, and z?
(A) 3
2 zk z
(B) 2
2 zk z
(C) 3
zk z
(D) 2
zk z
(E) 3
2 )( zk z
3. The median of a set of 9 consecutive
integers is 42. What is the greatest of
these 9 integers?
4.
What was the average (arithmetic mean)
of the scores of the 5 students on test II?
(A) 60
(B) 65
(C) 68
(D) 70
(E) 72
5. If the areas of two regions are equal
and the sum of the areas of the regions
is 5, what is the average (arithmetic
mean) of the areas of the two regions?
(A) 0
(B) 2
5
(C) 4
5
(D) 5
(E) 10
56
MEAN, MEDIAN & MODE �
SAT Practice Book
2009-
2010
2
2009-2010
2
6. When the sum of a list of prices is
divided by the average (arithmetic
mean) of the prices, the result is k.
What does k represent?
(A) The sum of the prices
(B) Half of the sum of the prices
(C) The average of the prices
(D) The number of prices
(E) Half of the number of prices
7.
Number of Siblings per
Student in a Preschool Class
Number
of Siblings
Number
of Students
0 3
I 6
2 2
3 1
The table above shows how many
students in a class of 12 preschoolers
had 0, 1, 2, or 3 siblings. Later, a new
student joined the class, and the
average (arithmetic mean) number of
siblings per student became equal to
the median number of siblings per
student. How many siblings did the
new student have?
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4
8. Each of 5 people had a blank card on
which they wrote a positive integer. If
the average (arithmetic mean) of these
integers is 15, what is the greatest
possible integer that could be on one of
the cards?
9. The first term of a sequence is 20 and
the second term is 8. The third term
and each term thereafter is the
average (arithmetic mean) of the two
terms immediately preceding it. What
is the value of the first term in the
sequence that is not an integer?
10.If the average (arithmetic mean) of x
and 3x is 12, what is the value of x?
(A) 2
(B) 4
(C) 6
(D) 12
(E) 24
57
MEAN, MEDIAN & MODE �
SAT Practice Book
2009-
2010
3
2009-2010
3
11. The average (arithmetic mean) of a, b,
and c is equal to the median of a, b,
and c. If 0 < a < b < c, which of the
following must be equal to b ?
(A) 2
c a c
(B) 3
c a c
(C) 2
a - c
(D) 3
a - c
(E) ac
12. Fifty percent of the songs played on a
certain radio station are 3 minutes
long, 30 percent are 5 minutes long,
and 20 percent are 2 minutes long.
What is the average (arithmetic mean)
number of minutes per song played on
this radio station?
13. If the average (arithmetic mean) of 5
and r is 7 and the average of 3 and s is
3, what is the average of r and s ?
(A) 3
(B) 5
(C) 6
(D) 9
(E) 12
14. a, 2a, b
If the average (arithmetic mean) of the
3 numbers above is 2a, what is b in
terms of a ?
(A) a
(B) 2
3 a
(C) 2a
(D) 2
5a
(E) 3a
15. For which of the following lists of 7
numbers is the average (arithmetic
mean) less than the median?
(A) 1, 2, 3, 8, 9, 10, 11
(B) 3, 4, 5, 8, 11, 12, 13
(C) 5, 5, 5, 8, 11, 11, 11
(D) 5, 6, 7, 8, 9, 10, 11
(E) 5, 6, 7, 8, 9, 10, 20
58
MEAN, MEDIAN & MODE �
SAT Practice Book
2009-
2010
4
2009-2010
4
16. For 12 bottles of shampoo of various
brands, the cost and volume of each
are displayed in the scatterplot above,
and the line of best fit for the data is
shown. Of the following, which is
closest to the average (arithmetic
mean) cost per ounce for the 12
bottles?
(A) $0.06
(B) $0.09
(C) $0.12
(D) $0.15
(E) $0.18
17.
The table above shows the number of items
100
customers purchased from a hardware store
over a 4 -hour period. Which of the following
can be determined from the information in
the table?
I. The average (arithmetic mean) number of
items purchased per customer
II. The median number of items purchased
per
customer
III. The mode of the number of items
purchased per customer
(A) None
(B) I and II only
(C) I and III only
(D) II and III only
(E) I, II, and III
59
MEAN, MEDIAN & MODE �
SAT Practice Book
2009-
2010
5
2009-2010
5
18. The median of a list of 99 consecutive
integers is 60. What is the greatest
integer in the list?
19. The average (arithmetic mean) of 6,
19, and x is 19. What is the value of x ?
(A) 19
(B) 25
(C) 31
(D) 32
(E) 57
20. If the average (arithmetic mean) of t
and t 2 is x and if the average of t
and t 2 is y, what is the average of x
and y ?
(A) 1
(B) 2
t
(C) t
(D) t 2
1
(E) 2t
21.
The bar graph above shows the number of
tons of beans produced on a large farm for
the years 1985 through 1991. For which of
the following two-year periods was the
average (arithmetic mean) bean production
closest to the bean production in 1985?
(A) 1986-1987
(B) 1987-1988
(C) 1988-1989
(D) 1989-1990
(E) 1990-1991
22. The average (arithmetic mean) of t
and y is 15, and the average of w and x
is 15. What is the average of t, w, x,
and y ?
(A) 7.5
(B) 15
(C) 22.5
(D) 30
(E) 60
60
MEAN, MEDIAN & MODE �
SAT Practice Book
2009-
2010
6
2009-2010
6
23. 10, 18, 4, 15, 3, 21, x
If x is the median of the 7 numbers
listed above, which of the following
could be the value of x ?
(A) 5
(B) 8
(C) 9
(D) 14
(E) 16
24.If 2x – 5, x + 1, and 3x – 8 are all
integers and x + 1 is the median of
these integers, which of the following
could be a value for x?
(A) 5
(B) 7
(C) 9
(D) 10
(E) 11
61
EQUATIONS �
SAT Practice Book
2009-2010
11
1. If 2x + 3 = 9, what is the value of
4x – 3?
(A) 5
(B) 9
(C) 15
(D) 18
(E) 21
2. If 3
2
3
2
y
x , what is the value of
y
x
2
3?
(A) 3
1
(B) 3
2
(C) 1
(D) 2
3
(E) 4
9
3. If 5t = 45 and tk = 1, what is the value
of k?
(A) 45
1
(B) 9
1
(C) 5
1
(D) 5
(E) 9
4. If 3
2
3
2
y
x , what is the value of
y
x
2
3?
(A) 3
1
(B) 3
2
(C) 1
(D) 2
3
(E) 4
9
5. If 3x + 9 = 5x + 1, what is the value of
x?
(A) 1
(B) 2
(C) 3
(D) 4
(E) 8
6. If 2(x – 3) = 8, what does 3
3
3
3
x
xequal?
62
EQUATIONS �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. If 6,565 = 65(x + 1), then x = ?
(A) 10
(B) 11
(C) 100
(D) 101
(E) 1001
8. If 2x – 10 = 20, then x – 5 = ?
(A) 5
(B) 10
(C) 15
(D) 20
(E) 30
9. If x = k(k – 2), then x + 1 = ?
(A) k2 – k
(B) k2 – 3k
(C) k2 – 2k + 1
(D) k2 + 2k + 1
(E) k2 – 1
10.37
39
2 37
39
2x
x, then x =
(A) 37
(B) 39
(C) 41
(D) 74
(E) 78
11. If 40,404+x=44,444, then 40,404-10x = ?
(A) - 4.04
(B) 0.004
(C) 4
(D) 4.04
(E) 40.4
12. If 0.0002 x 0.0002, then x
(A) 0.0001
(B) 0.1
(C)2
1
(D) 1
(E) 1,000
13. If n is 3 less than w and w is 1 more than
z, what is the value of n when z =1 ?
(A) 1
(B) 0
(C) 1
(D) 2
(E) 3
14. If 3x x 2x x 20, then x
(A) 20
(B) 10
(C) 5
(D) 10
(E) 20
63
EQUATIONS �
SAT Practice Book
2009-
2010
3
2009-2010
3
15. Which of the following represents the
total cost, in dollars, of k compact discs at
$15 each and p compact disc cases at $25
each? (Disregard sales tax.)
(A) 15kk 25p
(B) 25kk 15p
(C) 40(kk p)
(D) 0.40(kk p)
(E) (15 k)(25 p)
16. If tx 5 tt 1 x, which of the following must be
true?
(A) x 4
(B) x 5
(C) t 4
(D) t 5
(E) t 5x
17. If x = 5 y and y=z+1, what is 5
xin terms of z ?
(A) z
(B) z + 1
(C) 5 z
(D) 5 z +1
(E) 5 11z
18. If x 3y and y 4z, what is x in terms of z ?
(A) z4
3
(B) z
(C) z3
4
(D) 7z
(E) 12z
19. 64
3)25(6
32 mif What is the value of m?
20. if thenxxx ,24642 2464 x=?
A) -288
B) -2
C) -2
1
D) 2
1
E) 2
21. if 2
1
1
1
2
1
1x, What is the value of x?
A) 2
B) 1
C) 0
D) -1
E) -2
22. if 13)5( 2 15 xxyx what is the
value of y when x=2?
64
EQUATIONS �
SAT Practice Book
2009-
2010
4
2009-2010
4
23. if ?1010
99,
3
2?
10
9
3
2
ba
yxthen
ba
yx
A) 10
9
B) 23
20
C) 27
20
D) 3
2
E) 5
3
24. If 10 + x is 5 more than 10, what is the
value of 2x?
(A) -5(B) 5
(C) 10
(D) 25
(E) 50
25. The result when a number is divided by 2
is equal to the result when that same
number is divided by 4. What is that
number?
(A) -4(B) -2(C) 0
(D) 2
(E) 4
26. If a positive integer n is picked at
random from the positive integers less than
or equal to 10, what is the probability that
5n+3≤14 ?
A) 0
B) 10
1
C) 5
1
D) 10
3
E) 5
2
27. If (x -2) 2 =49, then x could be?
(A) -9(B) -7(C) 2
(D) 5
(E) 9
28. If (2m)k =6, then mk =?
(A) 3
(B) 4
(C) 5
(D) 6
(E) 12
65
VARIATIONS �
SAT Practice Book
2009-2010
11
1. Which of the following tables shows a
relationship in which w is directly
proportional to x?
(A)
(B)
(C)
(D)
(E)
2. If 5t = 45 and tk = 1, what is the value
of k?
(A) 45
1
(B) 9
1
(C) 5
1
(D) 5
(E) 9
3. If xr = v, v = kr, and rv 0, which of the
following is equal to k?
(A) 1
(B) x
1
(C) x – 1
(D) x
(E) x + 1
4. If y is directly proportional to x2 and 8
1
8
1y
when 2
1
2
1x what is the positive value of x
when2
9
2
9y ?
(A) 4
3
(B) 2
3
(C) 4
9
(D) 3
(E) 9
66
VARIATIONS �
SAT Practice Book
2009-
2010
2
2009-2010
2
5. If y is inversely proportional to x and
y = 15 when x = 5, what is the value of y
when x = 25?
(A) 5
1
(B) 3
1
(C) 3
(D) 5
(E) 75
6. If r is directly proportional to s and if s =
when r = what is the value of r when
s = 9
4?
7. If y is directly proportional to x and if
y = 20 when x = 6, what is the value of y
when x = 9?
(A) 3
10
(B) 3
40
(C) 23
(D) 27
(E) 30
67
INEQUALITIES & ABSOLUTE VALUE�
SAT Practice Book
2009-2010
11
1. If rstv = 1 and stuv = 0, which of the
following must be true?
(A) r < 1
(B) s < 1
(C) t > 2
1
(D) u = 0
(E) v = 0
2. If 2x < y < 0, which of the following is
greatest?
(A) –2x
(B) –(2x + y)
(C) 2x
(D) 0
(E) –y
3. If 3b + 1 < 10, which of the following
CANNOT be the value of b?
(A) –1
(B) 0
(C) 1
(D) 2
(E) 3
4. If x is an integer greater than 1 and if
xxy11
x , which of the following must
be true?
I. y x
II. y is an integer.
III. xy > x2
(A) I only
(B) III only
(C) I and II only
(D) I and III only
(E) I, II, and III
5. At a bottling company, machine A fills
a bottle with spring water and
machine B accepts the bottle only if
the number of fluid ounces is between
8
711 and
8
112 If machine B accepts a
bottle containing n fluid ounces, which
of the following describes all possible
values of n ?
(A) 8
112
8
112n
(B) 8
112
8
112n
(C) 8
112
8
112n
(D) 8
112
8
112n
(E) 8
112
8
112n
68
INEQUALITIES & ABSOLUTE VALUE �
SAT Practice Book
2009-
2010
2
2009-2010
2
6. 2233 )( xx (
For what value of x is the statement
above FALSE?
(A) –3
(B) 0
(C) 3
1
(D) 1
(E) For no value of x
7. For how many ordered pairs of positive
integers (x, y) is 2x + 3y < 6?
(A) One
(B) Two
(C) Three
(D) Five
(E) Seven
8. If x and y are positive consecutive odd
integers, where y > x, which of the
following is y2 – x2?
(A) 2x
(B) 4x
(C) 2x + 2
(D) 2x + 4
(E) 4x + 4
9. 85
310
85
3
k
k
What is the value of k that satisfies
both equations above?
10. A regulation for riding a certain
amusement park ride requires that a
child be between 30 inches and 50
inches tall. Which of the following
inequalities can be used to determine
whether or not a child’s height h
satisfies the regulation for this ride?
(A) 5010 51h
(B) 4020 42h
(C) 2030 23h
(D) 1040 14h
(E) 545 54h
69
INEQUALITIES & ABSOLUTE VALUE �
SAT Practice Book
2009-
2010
3
2009-2010
3
11.If 0 < x < 1, which of the following
statements must be true?
I. x2 > x3
II. x > 2
x
III. x> x3
(A) I only
(B) II only
(C) I and II only
(D) I and III only
(E) I, II, and III
12.
On the number line above, t, u, v, w, x,
y, and z are coordinates of the
indicated points. Which of the
following is closest in value to |u +
v| ?
(A) t
(B) w
(C) x
(D) y
(E) z
13. If 0 < n < 1, which of the following
gives the correct ordering of n , n,
and n2 ?
(A) n < n < n2
(B) n < n2 < n
(C) n < n < n2
(D) n < n2 < n
(E) n2 < n < n
14. If 80 8x and 31 31 y , which of
the following gives the set of all
possible values of xy?
(A) xy = 4
(B) 240 24xy
(C) 111 111 xy
(D) 241 241 xy
(E) 248 248 xy
15. If x + y = 30 and x > 8, then which of
the following must be true?
(A) y > 0
(B) y < 22
(C) y = 22
(D) y > 22
(E) x < 30
70
INEQUALITIES & ABSOLUTE VALUE �
SAT Practice Book
2009-
2010
4
2009-2010
4
16.
On the number line above, which of
the following corresponds to wu w ?
(A) t
(B) v
(C) x
(D) y
(E) z
17. 157
53
157
53
k
m
In the equations above, m < 0 and k
< 0. What is the value of m – k?
(A) –24
(B) –14
(C) 8
(D) 16
(E) 20
18. If k(2x + 3)(x – 1) = 0 and x > 1,
what is the value of k?
(A) 2
3
2
3
(B) 0
(C) 3
2
(D) 1
(E) 2
19. If 4x = 6u = 5v = 7w > 0, which of
the following is true?
(A) x < v < u < w
(B) x < u < v < w
(C) x < v < w < u
(D) w < u < v < x
(E) u < v < w < x
20. If x = –1 and k > 0, which of the
following has the greatest value?
(A) 2kx
(B) 4kx2
(C) 6kx3
(D) 8kx4
(E) l0kx5
71
INEQUALITIES & ABSOLUTE VALUE�
SAT Practice Book
2009-2010
11
1. If 32 3x , which of the following is a
possible value of x?
(A) 4
(B) 5
{C) 6
(D) 7
(E) 8
2. If a>b>0, which of the following is greater
than b
a?
(A) 1
(B) a
b
(C)
b
a
1
(D) b
a
2
(E) b
a2
3. If -9 < x <9, which of the following must be
true?
(A) 2x < 9
(B) 3x > 9
(C) x < 9
(D) 22x >7
(E) 99x <9
4. If 8
1
7
11
8
1
7
1
6
1
8
1
7
11
8
1
7
1
x then x could be
which of the following?
(A) 3
(B) 4
{C) 5
(D) 6
(E) 7
5. If m>0, then m
m
m
mm2
(A) 0
(B) 1
{C) m
(D) 12 1m
(E) 2m
6. . If y
1
6
1
5
1
7
1
6
1
5
1 1
6
1
5
1
7
1
6
1 then y could be
which of the following?
(A) 6
(B) 7
{C) 8
(D) 9
(E) 10
72
INEQUALITIES & ABSOLUTE VALUE �
SAT Practice Book
2009-
2010
2
2009-2010
2
7. If a+b= 40 and a < 15, which of the
following must be true?
(A) a > 0
(B) b < 25
(C) b = 25
(D) b > 25
(E) b < 40
8. if x>0, then 2
22
x
x
x
xx
(A) 0
(B) 1
{C) x
(D) 2x
(E) 11x
9. If k is a positive integer divisible by 7, and
if k < 90, what is the greatest possible value
of k ?
(A) 83
(B) 84
(C) 87
(D) 88
(E) 89
10. If a, b, and c are positive integers, and if
(a−c)b=0, which of the following must be
true?
(A) a<b
(B) b<c
(C) a=b
(D) a=c
(E) b=c
11. If p < −5 or p > 5, which of the following
must be true?
I. 2p > 5
II. p > 5
III. 3p > 5
(A) II only
(B) I and II only
(C) I and III only
(D) II and III only
(E) I, II, and III
12. 33t =4
For how many values of t is the equation
above true?
(A) None
(B) One
(C) Two
(D) Four
(E) More than four
73
INEQUALITIES & ABSOLUTE VALUE �
SAT Practice Book
2009-
2010
3
2009-2010
3
13.
Which of the following inequalities is true
about the lengths a and b of the sides of the
triangle above?
(A) 0≤(a+b) 2 <20
(B) 20 ≤ (a+b) 2 < 40
(C) 40 ≤ (a+b) 2 < 100
(D) 100 ≤ (a+b) 2 < 400
(E) 400 ≤ (a+b) 2
14.
Which of the lettered points in the figure
above has coordinates (x,y) such that
77yx ?
(A) A
(B) B
(C) C
(D) D
(E) E
15. If 75 percent of m is equal to k percent of
25, where k > 0, what is the value of k
m?
(A) 16
3
(B) 3
1
(C) 4
3
(D) 3
(E) 3
16
74
INEQUALITIES & ABSOLUTE VALUE �
SAT Practice Book
2009-
2010
4
2009-2010
4
16. Marcus can spend no more than $120 on
jeans and shirts for school. He buys 3 pairs of
jeans at $32 each. If x represents the dollar
amount he can spend on shirts, which of the
following inequalities could be used to
determine the possible values for x ?
(A) (3) 32-x 120
(B) (3) 32-x ≥120
(C) (3) 32+x 120
(D) (3) 32+x ≥120
(E) x (3) 32
17. Each of the following inequalities is true
for some values of x EXCEPT
(A) x < x 2 < x 3
(B) x < x 3 < x 2
(C) x 2 <x 3 < x
(D) x 3 <x <x 2
(E) x 3 <x 2 <x
18. If 6 < 33x <7 and x< 0, what is one
possible value of x ?
19 . If x and y are integers, 7 <y <16, and
5
2
5
2
y
x how many possible values are there for
x ?
(A) One
(B) Two
(C) Three
(D) Four
(E) Five
75
LINEAR EQUATIONS �
SAT Practice Book
2009-2010
11
1.157
53
157
53
k
m
In the equations above, m < 0 and k < 0.
What is the value of m – k?
(A) –24
(B) –14
(C) 8
(D) 16
(E) 20
2.
66
1273
6
127
kyx
yx
For which of the following values for k will
the system of equations above have no
solution?
(A) −14
(B) −7
(C) 0
(D) 7
(E) 14
3.174
852
17
85
kyx
yx
For which of the following values of k will
the system of equations above have no
solution?
(A) -10
(B) -5
(C) 0
(D) 5
(E) 1 0
4. kwm
wxk
)1(
3
1(
3
If k and m are defined by the equations
above, what is the value of m when w = 4 and
x = 1?
(A) 0
(B) 3
(C) 12
(D) 24
(E) 36
76
LINEAR EQUATIONS �
SAT Practice Book
2009-
2010
2
2009-2010
2
5. If ba
yxthen
ba
yx
1010
99,
3
2
10
9
3
2
b
y
A) 10
9
B) 23
10
C) 27
10
D) 3
2
E) 5
3
6. If 5y + 2x = 23 and x = y + 1, what is the
value of y?
7. If 2x + z = 2y and 2x + 2y + z = 20, what is
the value of y?
(A) 5
(B) 8
(C) 10
(D) 15
(E) It cannot be determined from the
information given.
77
QUADRATIC EQUATIONS �
SAT Practice Book
2009-2010
11
1. If x2+y2 = 73 and xy = 24, what is the
value of (x + y)2 ?
(A) 73
(B) 97
(C) 100
(D) 121
(E) 144
2.
The figure above shows the graphs of
y = x2 and y = a – x2 for some constant
a. If the length of PQ is equal to 6,
what is the value of a?
(A) 6
(B) 9
(C) 12
(D) 15
(E) 18
3. The quadratic function g is given by
g(x) = ax2, + bx + c, where a and c are
negative constants. Which of the following
could be the graph of g?
(A)
(B)
(C)
(D)
(E)
78
QUADRATIC EQUATIONS �
SAT Practice Book
2009-
2010
2
2009-2010
2
3.
Which of the following could be the equation
of the graph of function g, shown above?
(A) g(x) = x 2 -3x +2
(B) g(x) = x 2 -2x +1
(C) g(x) = x 2 +x + 3
(D) g(x) = x 2 +2x -1
(E) g(x) = x 2 +3x -2
5. If x 2 − 64 = 0, which of the following could
be a value of x?
(A) −8
(B) −4
(C) 0
(D) 16
(E) 32
6.
The quadratic function graphed above has
equation f(x) = a − x 2 . Which of the following
must be true?
(A) a > 0
(B) a < 0
(C) a is even.
(D) a is odd.
(E) a is the square of an integer.
79
FUNCTIONS �
SAT Practice Book
2009-2010
11
1. The table above shows some values for the
function f. If f is a linear function, what is the
value of a + b?
(A) 24 (B) 36
(C) 48 (D) 72
(E) It cannot be determined from the
information given.
2. The shaded region in the figure
above is bounded by the x–axis, the line
x = 4, and the graph of y = f(x).If the point
(a, b) lies in the shaded region, which of the
following must be true?
I. a 4
II. b a
III. b f(a)
(A) I only (B) III only
(C) I and II only (D) I and III only
(E) I, II, and III
3.
The figure above shows the graph of
y = g(x). If the function h is defined by
h(x) = g(2x) + 2, what is the value of h(1)?
4. A group of students washed cars to raise
money. The net amount A, in dollars, raised
by washing k cars is given by the function
A(k) = 4k – 30. If the group washed 15 cars,
what is the net amount they raised?
(A) $10
(B) $15
(C) $20
(D) $25
(E) $30
80
FUNCTIONS �
SAT Practice Book
2009-
2010
2
2009-2010
2
5. Let the function h be defined by
h(x) = 14 + 4
2x.If h (2m) = 9m, what is one
possible value of m?
6. For which of the following functions is
)f() f( 33 f(3 ?
(A) 24xxf 4)(
(B) 44)(xf
(C) x
xf44
)(
(D) 34 xxf x4)(
(E) 444xxf )(
7. The figure above shows the graph of the
function h. Which of the following is
closest to h(5) ?
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
8. The total daily cost c, in dollars, of
producing x units of a certain product is
given by the function c(x) = x
x 200600 20+ k,
where k is a constant and x 100. If 20 units
were produced yesterday for a
total cost of $640, what is the value of k?
(A) 40
(B) 50
(C) 60
(D) 590
(E) 600
9. Let the function f be defined by
f(x) = x + 1. If 2f (p) = 20, what is the value of
f (3p)?
\
10. The graph of y = g(x) is shown above.
If g (k) = 1, which of the following is a
possible value of k?
(A) –1.5
(B) –0.5
(C) 1
(D) 1.5
(E) 2
81
FUNCTIONS �
SAT Practice Book
2009-
2010
3
2009-2010
3
11. The table above gives values of the
quadratic function f for selected values of x.
Which of the following defines f?
(A) f(x) = x2 + 1
(B) f(x) = x2 + 2
(C) f(x) = 2x2 – 2
(D) f(x) = 2x2 – 1
(E) f(x) = 2x2 + 1
12. The graph of y = f(x) is shown above.
Which of the following could be the graph of
y = f(x + 2)?
(A)
(B)
(C)
(D)
(E)
82
FUNCTIONS �
SAT Practice Book
2009-
2010
4
2009-2010
4
13. In the figure above, ABCD is a
rectangle. Points A and C lie on the graph of
y = px3, where p is a constant. If the area of
ABCD is 4, what is the value of p?
14. The total daily profit p, in dollars, from
producing and selling x units of a certain
product is given by the function
p(x) = 17x – (10x + b), where b is a constant.
If 300 units were produced and sold
yesterday for a total profit of $1,900, what is
the value of b?
(A) –200
(B) –100
(C) 0
(D) 100
(E) 200
15. The graph of y = g(x) is shown above.
If g (2) = k, which of the following could be
the value of g (k)?
(A) 2
(B) 2.5
(C) 3
(D) 3.5
(E) 5
16. The figures above show the graphs of the
functions f and g. The function f is defined by
f(x) = x3 – 4x. The function g is defined by
g(x) = f(x + h) + k, where h and k are
constants. What is the value of hk?
(A) –6
(B) –3
(C) –2
(D) 3
(E) 6
83
FUNCTIONS �
SAT Practice Book
2009-
2010
5
2009-2010
5
17. If the function f is defined by
f(x) = x2 + bx + c, where b and c are positive
constants, which of the following could be the
graph of f?
(A)
(B)
(C)
(D)
(E)
18. The table above gives values of the linear
function g for selected values of t. Which of
the following defines g?
(A) g(t)= 2
1t + 1
(B) g(t)= –2
1t + 1
(C) g(t)= –t + 1
(D) g (t)= –t + 2
(E) g(t)= –2t + 2
Questions 19–20 refer to the following
functions g and h.
nnnh
nnng
nn
nn
2
2
)(
)(
19. g (5) – h(4) =
(A) 0
(B) 8
(C) 10
(D) 18
(E) 32
20. Which of the following is equivalent to
h (m + 1)?
(A) g (m)
(B) g (m) + 1
(C) g (m) – 1
(D) h (m) + 1
(E) h(m) –1
84
FUNCTIONS �
SAT Practice Book
2009-
2010
6
2009-2010
6
21. Let the function f be defined by
f(x) = x2 + 18. If m is a positive number such
that f (2m) = 2f (m), what is the value of m?
22. Let the function h be defined by
h (t) = 2(t3 – 3). When h (t) = –60, what is the
value of 2 – 3t?
(A) 35
(B) 11
(C) 7
(D) –7
(E) –11
23. The table above represents a relationship
between x and y. Which of the following
linear equations describes the relationship?
(A) y = x + 1
(B) y = x + 4
(C) y = 3x
(D) y = 4x
(E) y = 4x – 1
85
FUNCTIONS �
SAT Practice Book
2009-2010
11
1. Let the function f be defined by
f(x) = 2x – 1.
If 2
1f ( t ) = 4, what is the value of t?
(A) 2
3
(B) 2
7
(C) 2
9
(D) 4
49
(E) 4
81
2. Based on the graph of the function f above,
what are the values of x for which f(x) is
negative?
(A) –6 < x < 0
(B) 0 < x < 6
(C) 6 < x < 7
(D) –6 < x < 6
(E) –6 < x < 0 and 6 < x < 7
3. Let the function f be defined by
f(x) = x2 + 18. If m is a positive number such
that f (2m) = 2f (m), what is the value of m?
4. The rate for a telephone call between City
A and City B is 50 cents for the first minute
and 30 cents for each additional minute or
portion thereof. Which of the following
functions describes the cost, in dollars, of a
phone call between these two cities that lasts
for n minutes, if n is a positive integer?
(A) f(n) = 0.80n
(B) f(n) = 0.50 + 0.30 n
(C) f(n) = 0.50 + 0.30 (n + 1)
(D) f(n) = 0.50 + 0.30 (n – 1)
(E) f(n) = 0.50n + 0.30(n – 1)
5. For all numbers x, the function f is defined
by f(x) =(x+4) (x+2). Which of the following
has a negative value?
(A) f ( 5)
(B) f ( 4)
(C) f ( -3)
(D) f ( -2)
(E) f ( -1)
86
FUNCTIONS �
SAT Practice Book
2009-
2010
2
2009-2010
2
6. A weather-watch camera is set so that its
shutter opens every 31 seconds. If g (h)
represents the number of times the camera’s
shutter opens in h hours, which of the
following defines g?
(A) g (h) = 31h
(B) g (h) = 31* 3600h
(C) g (h) = 31h/3600
(D) g (h) =3600h/31
(E) g (h) =31*3600/h
7. Let the function s be defined so that s(x) is
the area of a semicircle with diameter x. If s
(6) +s (8) =s (b), what is the value of b?
8. The table above gives values of the linear
function k for selected values of x. Which of
the following defines k?
(A) k (x) = -2x +1
(B) k (x) = -x +1
(C) k (x) = 2
1
2
1
2
1x
(D) k (x) = x -1
(E) k (x) =2x-1
9. For all x ≥ -1, let the function f be defined
as f(x) = x+1. Which of the following is equal
to f (15) f (8)?
(A) f ( 1)
(B) f (0)
(C) f (1)
(D) f (7)
(E) f ( 7 )
10. The table above shows some values for
the functions f and g. If f and g are linear
functions, what is the value of a b?
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4
87
FUNCTIONS �
SAT Practice Book
2009-
2010
3
2009-2010
3
11. Rita’s dog weighed 5 pounds when she
bought it. Over the next several years, the
dog’s weight increased by 10 percent per
year. Which of the following functions gives
the weight, w, in pounds, of the dog after n
years of weight gain at this rate?
(A) w(n)=5+0.1n
(B) w(n) = 5(0.1) n
(C) w(n) = 5(0.9) n
(D) w(n) = 5(1.1) n
(E) w(n) = 5(n) 1.1
f x =kg(x) +2
12. The function f above is defined in terms
of another function g for all values of x,
where k is a constant. If t is a number for
which f (t) = 30 and g (t) = 8, what does k
equal?
13. Which of the following could be the
equation of the graph of function g, shown
above?
(A) g(x) = x 2 -3x +2
(B) g(x) = x 2 -2x +1
(C) g(x) = x 2 +x + 3
(D) g(x) = x 2 +2x -1
(E) g(x) = x 2 +3x -2
14. Let the function f be defined by
f(x) =2x-1.
If2
1 f (t) = 10 what is the value of t?
(A) 9.5
(B) 3
(C) 3
(D) 9.5
(E) 10.5
15. For which of the following functions is it
true that f (-2)= f(2)?
(A) f (x) =
(B) f (x) = 2 - x
(C) f (x)=x+1
(D) f (x)= x2+1
(E) f (x)=2 x 3
88
FUNCTIONS �
SAT Practice Book
2009-
2010
4
2009-2010
4
16. The graph of a quadratic function and the
graph of a linear function in the xy -plane
can intersect in at most how many points?
(A) One
(B) Two
(C) Three
(D) Four
(E) More than four
17. Which of the following could be the graph
in the xy -plane of the function f (x) = 2x + 3?
A.
B.
C.
D.
E.
89
FUNCTIONS �
SAT Practice Book
2009-2010
11
1.
The function f graphed above is defined for
−3 ≤ x ≤ 6. For which of the following values
of x is f (x) < )(xf ?
(A) −3 (B) −2 (C) −1
(D) 1 (E) 5
2. For all x, the function f is defined by
f (x) = 3x, and the function g is defined by
g(x) = f (x) + 2. What is the value of g (50)?
3.
c (n) = 35 + 12n
To hold a birthday party for n people, the
amount a party planner charges, in dollars,
is given by the function c(n) above. How
much, in dollars, does the planner charge to
hold a birthday party for 12 people?
(Disregard the $ sign when gridding your
answer.)
4. 2)(
)( 2
2xxt
xxr
The functions r and t are defined above. For
how many values of a is it true that
r (a) = t (a)?
(A) None
(B) One
(C) Two
(D) Three
(E) More than three
5.
The function y= f(x), defined for −5≤ x ≤6, is
graphed above. Which of the following gives
all values of x for which f(x) is positive?
(A) 0< x ≤6
(B) 5< x ≤6
(C) −5≤ x <2
(D) −4< x <1 and 5< x ≤6
(E) −5≤ x < −4 and 1< x <5
90
FUNCTIONS �
SAT Practice Book
2009-
2010
2
2009-2010
2
6. If the function f is defined by3
6)(
6xxf ,
for what value of x does f(x) = 20?
7. If the function g is defined by g(x) =x 3 −3x,
what is the value of g (−3)?
(A) −36
(B) −18
(C) −3
(D) 18
(E) 36
8.
The table above gives values of the function f
for several values of t. If the graph of f is a
line, which of the following defines f (t)?
(A) f (t)=t-1
(B) f (t)=t+1
(C) f (t)=2t+1
(D) f (t)=2t-1
(E) f(t)=1-2t
9.
Based on the graph of the function f above,
what are the values of x for which f(x) is
positive?
(A) -2 x <1 or 8<x< 10
(B) -2 x <1 or 4<x<8
(C) 1<x<4 or 8<x 10
(D) -2 x 10
(E) 1<x<8
10. Let the function f be defined by f(x) = 5x
for all numbers x. Which of the following is
equivalent to f(p + r)?
(A)5
rp r
(B) 5p+r
(C) 5p+5r
(D) 10 (p + r)
(E) 25pr
91
FUNCTIONS �
SAT Practice Book
2009-
2010
3
2009-2010
3
11. The graph of y= f(x) is shown above.
If -3 x 6, for how many values of x does
f(x) = 2?
(A) None
(B) One
(C) Two
(D) Three
(E) More than three
12.
The graph of y= f(x) is shown above.
If -3 x 6, for how many values of x does
f(x) = 2?
(A) None
(B) One
(C) Two
(D) Three
(E) More than three
13. If the function f is defined by f(x)=3x + 4,
then 2f(x) +4=?
(A) 5x +4
(B) 5x+ 8
(C) 6x +4
(D) 6x+ 8
(E) 6x +12
14.
The graphs of the functions f and g are lines,
as shown above. What is the value of
f (3) +g (3)?
(A) 1.5
(B) 2
(C) 3
(D) 4
(E) 5.5
92
FUNCTIONS �
SAT Practice Book
2009-
2010
4
2009-2010
4
15.
Based on the portions of the graphs of the
functions f and g shown above, what are all
values of x between -6 and 6 for which
g (x) >f (x)?
(A) 6< x< 3 only
(B) 3 <x< 0 only
(C) 0 <x< 3 only
(D) 3 <x< 6 only
(E) 6 <x< 3 and 0< x< 3
16. Which of the following is the graph of a
function f such that f(x) =0 for exactly two
values of x between- 5 and 5?
A.
B.
C.
D.
E.
93
OPERATIONS �
SAT Practice Book
2009-2010
11
1. Let the operations ∆ and □ be defined
for all real numbers a and b as follows.
a ∆ b = a + 3b
a □ b = a + 4b
If 4 ∆ (5y) = (5y) □ 4, what is the value
of y?
2. Let the operation be defined by
ba
baba
b
bab for all numbers a and b,
where a b. If 1 2 = 2 x, what is
the value of x?
(A) 4
(B) 3
(C) 2
(D) l
(E) 0
3. For all the numbers x and y, let the
operation □ be defined by
x □ y =xy – y. If a and b are positive
integers, which of the following can be
equal to zero?
I. a □ b
II. (a + b) □ b
III. a □ (a + b)
(A) I only
(B) II only
(C) III only
(D) I and II
(E) I and III
4. Let be defined as = x2 – x
for all values of x. If what
is the value of a?
(A) 1
(B) 2
1
(C) 2
3
(D) 5
6
(E) 3
94
OPERATIONS �
SAT Practice Book
2009-
2010
2
2009-2010
2
5. For all positive integers j and k, let j ® k
be defined as the whole number remainder
when j is divided by k. If 13 ® k = 2, what
is the value of k?
6. Let be defined as
= yy zx z for all positive integers x,
y, and z. What is the value of ?
Questions 7-9 refer to the following definition.
Let # be defined by a # b = ab + a + b for all
numbers a and b.
7. 2 # 5 =
(A) 7
(B) 10
(C) 17
(D) 20
(E) 32
8. If 10 # h = 98, then h =
(A) 8
(B) 9
(C) 10
(D) 11
(E) 12
9. For what value of x is the statement x
# y = x always true?
(A) - 2
(B) - 1
(C) 0
(D) 1
(E) 2
10. For all values of y, let y be defined
by y = y2- 1.Which of the following
is equal to (y ) ?
(A) y4 − 1
(B) y4 – y2 − 1
(C) y4 + y2− 1
(D) y4 − 2 y2
(E) y4 − 2 y2+ 1
95
OPERATIONS �
SAT Practice Book
2009-
2010
3
2009-2010
3
11.For all positive integers a and b, let ▲
be defined by a▲b = a 2+ b2 − 2.
If c and d are positive integers, which
of the following CANNOT be the value
of c▲d ?
(A) 0
(B) 2
(C) 3
(D) 6
(E) 8
12.For all positive integers w and y,
where w > y, let the operation be
defined by w y=yw
yw
y
y
2
2.
For how many positive integers w is w
1 equal to 4 ?
(A) None
(B) One
(C) Two
(D) Four
(E) More than four
13.For all numbers x and y, let x y be
defined as x y = x2 + xy + y2. What is
the value of (3 1) 1 ?
(A) 5
(B) 13
(C) 27
(D) 170
(E) 183
14.Let x be defined as x+x
1
for all nonzero integers x. If
x = t, where t is an integer, which of
the following is a possible value of t ?
(A) 1
(B) 0
(C) −1
(D) −2
(E) −3
96
COORDINATES GEOMETRY �
SAT Practice Book
2009-2010
11
1. In the xy–plane, the equation of line l
is y = 2x + 5. If line m is the reflection
of line l in the x–axis, what is the
equation of line m ?
(A) y = –2x – 5
(B) y = –2x + 5
(C) y = 2x – 5
(D) y = 2
1
2
1x – 5
(E) y = 2
1
2
1x + 5
2. In the xy–plane, line l passes through the
origin and is perpendicu1ar to the line
kyx ky4 where k is a constant. If the two
lines intersect at the point (t, t + 1), what is
the value of t?
(A) 3
4
3
4
(B) 4
5
4
5
(C) 4
3
(D) 4
5
(E) 3
4
3. In the figure above, what is the slope of
line ℓ ?
(A)
(B)
(C)
(D)
(E)
4. In the coordinate plane, the points F
and H lie on a circle with
center P.
What are the coordinates of point P ?
(A
(B)
(C)
(D)
(E)
97
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
2
2009-2010
2
5. Which of the following is the graph of
a linear function with a negative slope
and a positive y–intercept?
(A)
(B)
(C)
(D)
(E)
6. In the figure above, the scale on the
x–axis is different from the scale on
the y–axis. If the area of ∆ABC is 18,
what is the value of k?
(A) 10
3
(B) 4
3
(C) 5
6
(D) 2
3
(E) 3
7. In the xy–plane, the center of a circle
has coordinates (3, –7). If one endpoint
of a diameter of the circle is (–2, –7),
what are the coordinates of the other
endpoint of this diameter?
(A) (–7, –7)
(B) (–2,–2)
(C) (3, –2)
(D) (8, –2)
(E) (8, –7)
98
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
3
2009-2010
3
8. In the figure above, RS = ST and
the coordinates of S are (k, 3).
What is the value of k?
(A) –3
(B) 3
(C) 0
(D) 3
(E) 3
9. If the areas of the two rectangles in the
figure above are equal, which of the following
could be the coordinates of point P ?
(A) (−5, −3)
(B) (−5, 3)
(C) (5, − 5)
(D) (5, − 3)
(E) (5, 3)
10. What is an equation of line in the figure
above?
(A) y=
(B) y=
(C) y=
(D) y=
(E) y=
11. In the xy -plane, an equation of line ℓ is
y=3x−1. If line m is the reflection of line ℓ in
the y -axis, what is an equation of line m ?
(A) y= −3x−1
(B) y= −3x+1
(C) y=3x+1
(D) y=
(E) y=
99
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
4
2009-2010
4
12. In the xy-coordinate plane, the graph of
y= intersects line ℓ at (p, 5) and
(t, -7). What is the least possible value of the
slope of ℓ?
(A) 6
(B) 2
(C) -2
(D) -6
(E) -10
13. In the xy–coordinate system above,
which of the following line segments
has a slope of –1?
(A) OA
(B) OB
(C) OC
(D) OD
(E) DC
14. In the figure above, line l passes
through the origin. What is the value
of h
k?
(A) 3
(B) 2
(C) 2
3
(D) 2
3
2
3
(E) –3
100
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
5
2009-2010
5
15. The figure above shows the graph
of the line y = mx + b, where m and b
are constants. Which of the following
best represents the graph of the line
y = –3mx + b?
(A)
(B)
(C)
(D)
(E)
16. The figure above shows the graph of the
line y = ax + b, where a and b are constants.
Which of the following best represents the
graph of the line y = 2ax + b?
(A)
(B)
(C)
(D)
(E)
101
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
6
2009-2010
6
17. Rectangle ABCD lies in the
xy–coordinate plane so that its sides
are not parallel to the axes. What is
the product of the slopes of all four
sides of rectangle ABCD?
(A)–2
(B) –1
(C) 0
(D) 1
(E) 2
18. In the xy–plane above, points Q and
S are the centers of the circles, which
are tangent to the x–axis. What is the
slope of line QS (not shown)?
(A) 8
1
(B) 4
1
(C) 2
1
(D) 8
7
(E) 1
19. Which of the lettered points in the
figure above has coordinates (x, y) such that
33yx ?
(A) A
(B) B
(C) C
(D) D
(E) E
20. In the figure above, if the legs of
triangle ABC are parallel to the axes, which
of the following could be the lengths of the
sides of triangle ABC?
(A) 2, 5, and 29
(B) 2, 5,and 7
(C) 3, 3, and 23
(D) 3, 4,and 5
(E) 4, 5,and 41
102
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
7
2009-2010
7
21. In the figure above, the slope of line ℓ is .
What is the value of k ?
(A) 3
(B)
(C)
(D) 2
(E)
22. If the areas of the two rectangles in the
figure above are equal, which of the following
could be the coordinates of point R ?
(A)
(B)
(C)
(D)
(E)
103
COORDINATES GEOMETRY �
SAT Practice Book
2009-2010
11
1. In the figure above, line ℓ (not shown) is
perpendicular to and bisects . Which of
the following points lies on line ℓ?
(A)
(B)
(C)
(D)
(E)
2. In the figure above, the coordinates of P
are (10 -2a, 0) - and the coordinates of Q are
(10, a). A point in square ORST is to be
chosen at random. If the probability that the
point will be in the shaded triangle is what
is the value of a?
(A)
(B)
(C) 2
(D) 2
(E) 5
3. Point P is the point with the greatest y-
coordinate on the semicircle shown above.
What is the x-coordinate of point Q ?
(A) -3.5
(B) -3
(C) -2.5
(D)-2
(E)-1.5
4. Point S is the point with the greatest y -
coordinate on the semicircle shown above.
What is the x –coordinate of point R ?
(A) −5.5
(B) −4
(C) −3.5
(D) −3
(E) −2.5
104
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
2
2009-2010
2
5. What is an equation of the line parallel to
the x –axis and two units above the x -axis?
(A) x = −2
(B) x = 2
(C) y = −2
(D) y = 0
(E) y = 2
6. Which of the lettered points in the figure
above has coordinates (x,y) such that
=5?
(A) A
(B) B
(C) C
(D) D
(E) E
7. In the figure above, if line ℓ has a slope of -
2, what is the y-intercept of ℓ?
(A) 7
(B) 8
(C) 9
(D) 10
(E) 12
8. If x is the coordinate of the indicated point
on the number line above, which of the
lettered points has coordinate -2x ?
(A) A
(B) B
(C) C
(D) D
(E) E
105
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
3
2009-2010
3
Questions 9-10 refer to the following figure
and information.
The grid above represents equally spaced
streets in a town that has no one-way streets.
F marks the corner where a firehouse is
located. Points W, X, Y, and Z represent the
locations of some other buildings. The fire
company defines a building’s m-distance as
the minimum number of blocks that a fire
truck must travel from the firehouse to reach
the building. For example, the building at X
is an m-distance of 2, and the building at Y
is an m-distance of from the firehouse.
9. What is the m-distance of the building at
W from the firehouse?
(A) 2
(B) 2
(C) 3
(D) 3
(E) 4
10. What is the total number of different
routes that a fire truck can travel the m-
distance from F to Z ?
(A) Six
(B) Five
(C) Four
(D) Three
(E) Two
11. All of the buildings in the town that are
an m-distance of 3 from the firehouse must
lie on a
(A) circle
(B) square
(C) right isosceles triangle
(D) pair of intersecting lines
(E) line
12. In the figure above, line ℓ intersects the
x-axis at x = -2 and the y-axis at y = -3. If line
m (not shown) passes through the origin and
is perpendicular to line ℓ, what is the slope of
line m ?
106
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
4
2009-2010
4
13.In the xy–coordinate plane, the distance
between point B(10, 18) and point A(x, 3)
is 17. What is one possible value of x?
14.In a rectangular coordinate system, the
center of a circle has coordinates (5, 12),
and the circle touches the x–axis at one
point only. What is the radius of the
circle?
15.In the figure above, PQRS is a rectangle,
and points Q and. R lie on the graph of y
= ax2, where a is a constant. If the
perimeter of PQRS is 10, what is the
value of a?
16. In the figure above, ABCD is a
rectangle. Points A and C lie on the
graph of y = px3, where p is a constant.
If the area of ABCD is 4, what is the
value of p?
17. Point P lies on the line with equation y
– 4 = 3(x – 2). If the x–coordinate of P is
4, what is the y–coordinate of P ?
107
COORDINATES GEOMETRY �
SAT Practice Book
2009-
2010
5
2009-2010
5
18.Line m (not shown) passes through O
and intersects AB between A and B.
What is one possible value of the slope
of line m?
19. In the xy-plane above, the area of ∆OST
is 8. What is the value of a ?
20. In the xy -coordinate plane, the distance
between points P(10,y) and Q(70, 14) is 61.
What is one possible value of y ?
21. In the xy -coordinate plane above, AC =
3, BC = 5, and is perpendicular to . If
the coordinates of point A are (1, 0), what is
the y -intercept of line ℓ ?
108