surds & indices - sbi clerk
TRANSCRIPT
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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