surds & indices - sbi clerk

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  • 7/26/2019 Surds & Indices - SBI Clerk

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    1. (17)3.5x (17)?= 178

    A. 2.29 B. 2.75

    C. 4.25 D. 4.5

    2.If

    a - 1=

    b - 3, then the value of xis:

    b a

    A.1

    2B. 1

    C. 2 D.7

    2

    3. Given that 100.48= x, 100.70= yand xz= y2, then the value of zis close to:

    A. 1.45 B. 1.88

    C. 2.9 D. 3.7

    4. If 5a= 3125, then the value of 5(a- 3)is:

    A. 25 B. 125

    C. 625 D. 1625

    5. If 3(x- y)= 27 and 3(x+ y)= 243, then xis equal to:

    A. 0 B. 2

    C. 4 D. 6

    6. (256)0.16x (256)0.09= ?

    A. 4 B. 16

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    C. 64 D. 256.25

    The value of [(10)150 (10)146]

    A. 1000 B. 10000

    C. 100000 D. 106

    8. 1+

    1+

    1= ?

    1 + x(b- a)+ x(c- a) 1 + x(a- b)+ x(c- b) 1 + x(b- c)+ x(a- c)

    A. 0 B. 1

    C. xa- b- c D. None of these

    9. (25)7.5 x (5)2.5 (125)1.5 = 5?

    A. 8.5 B. 13

    C. 16 D. 17.5

    E. None of these

    10. (0.04)-1.5= ?

    A. 25 B. 125

    C. 250 D. 625

    11. (243)n/5x 32n+ 1

    = ?9nx 3n- 1

    A. 1 B. 2

    C. 9 D. 3n

    12. 1+

    1= ?

    1 + a(n- m) 1 + a(m- n)

    A. 0 B.1

    2

    C. 1 D. am+ n

    13. If mand nare whole numbers such that mn= 121, the value of (m- 1)n+ 1is:

    A. 1 B. 10

    C. 121 D. 1000

    14. b (b+ c- a) . c (c+ a- b) . xa (a+ b- c) = ?

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    c a b

    A. xabc B. 1

    C. xab+ bc+ ca D. xa+ b+ c

    15.If x= 3 + 22, then the value of -

    1is:

    A. 1 B. 2

    C. 22 D. 33

    16. Value of

    (256)54

    A. 1012

    B. 1024

    C. 1048

    D. 525

    17. 2. What is the value of (7 -14- 7-15)?

    A. 6 7-15 B. 6 7-14 C. 7 7-15 D. 7 7-14

    18. If 3(n + 4)- 3(n + 2)= 8, What is the value of n?

    A. 0 B. -1 C. -2 D. 2

    18. If 2x= mathbfsqrt[7]1024mathbfsqrt[7]1024, What is the value of x ?

    A. None of these B. -7/10 C. 10/7 D. 7/10

    19. [(32 52)17 (32 52)18]1/2= ?

    A. 15/4 B. 4/15 C. 7/4 D. 4/7

    20. (6561)(1/2)+ (6561)(1/4)+ (6561)(1/8)= ?

    A. 98 B. 86 C. 93 D. 81

    21.3n= 6561. 3n= ?

    A. 81 B. 9 C. 16 D. 25

    23. If 5(a + b)= 5 25 125 , what is (a + b)2

    A. 12 B. 16 C. 34 D. 36

    24. (7-1- 11-1) + (7-1+ 11-1) = ?

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    A. 2 7-1 B. 2 11-1 C. 14 D. 22

    25. (5)1.25 (12)0.25 (60)0.75= ?

    A. 420 B. 260 C. 200 D. 300

    26. 65610.14 65610.11= ?

    A. 16 B. 9 C. 4 D. 1

    27. What is the value of (2 4 5) 5n

    A. 25n+ 45n+ 55n B. (405)n C. (40)5n D. (40n)5

    28. If (3)n= 6561, (n)3/2= ?

    A. 64 B. 643 C. 163 D. 16

    28. 5x 23= 36. 5(x+1)= ?

    A. 22 B. 21 C. 20.5 D. 22.5

    29. 36120= (36 x)40. What is the value of x?

    A. 44 B. 46 C. 62 D. 64

    30. If 1000.20= x, 100.60= y and xz= y2, what is the value of z?

    A. 3 B. 6 C. 4.2 D. 2.2

    32. If x = (8 + 37), what is the value of (x (1/x))?

    A. 12 B. 4 C. 2 D. 14

    33. if 6m= 46656, What is the value of 6m-2

    A. 36 B. 7776 C. 216 D. 1296

    4. 10222 10220= ?

    A. 10 B. 100 C. 1000 D. 10000

    5. If m and n are whole numbers and mn= 196, what is the value of (m - 3)(n+1)?

    A. 2744 B. 1 C. 121 D. 1331