RBI Assistant Prelims 2016-17 (Important Questions-5)

RBI Assistant Prelims 2016-17 (Important Questions-5)

Directions(1-5): What should come in place of (_) in the following series:

1. 5, 14, 46, 165, _, 3525

A. 716
B. 736
C. 746
D. 696
E. None of these

Sol. D.696
(5 * 1) + (1 * 9) = 14
(14 * 2) + (2 * 9) = 46.....

2. 3, 2, 3, 6, 14, _, 116

A. 37.5
B. 47.5
C. 43.6
D. 36.8
E. None of these

Sol. A.37.5
3 * 0.5 + 0.5 = 2
2 * 1 + 1 = 3
3 * 1.5 + 1.5 = 6…..

3. 3, 8, 27, 76, _, 696, 2099

A. 245
B. 235
C. 275
D. 255
E. None of these

Sol. B.235
3 * 3 – 1 = 8
8 * 3 + 3 = 27
27 * 3 – 5 = 76…..

4. 5, 293, 437, _, 545, 563, 572

A. 457
B. 592
C. 509
D. 529
E. None of these

Sol. C.509
5 + 9 * 32 = 293
293 + 9 * 16 = 437
437 + 9 * 8 = 509….

5. 717, 522, 335, _, 121, 66 

A. 222
B. 232
C. 242
D. 252
E. None of these

Sol. A.222
9³ – 12 = 717
8³ + 10 = 522
7³ – 8 = 335……

Directions(6-10): What should come in place of question mark(?) in the following series:

6. 2015.98 + 1275.087 – 175.98 *0.95 + 988.09 = ?

A.4765
B.2653
C.3984
D.4004
E.None of these

Sol. D.4004
= 2016 + 1275– 275.98 *1 + 988
= 2016+1275-275+988
= 4004

7. 4/9 × 6/3 + 11/27 – 18/81 = ?

A.27/23
B.13/7
C.29/27
D.17/21
E.None of these

Sol. = 4/9 × 6/3 + 11/27 – 18/81
= 4/9 × 6/3 + 11/27 – 6/27
= 29/27.

8. 760.8 + 654.90 – 5333.33*0.1 + ?  = 10^3

A.117
B.234
C.323
D.479
E.None of these

Sol. A.117
761+655 – 533 + x = 1000
X = 1000 – 883 = 117.

9. 2/5  of 3/7 of 23/11 of ? = 64*3

A.511
B.616
C.409
D.723
E.None of these

Sol. 2/5*3/7*20/11 * x = 192
X = 192*11*7*5/2*3*20 = 616.

10. 41% of 801 – 150.17 = ? – 57% of 910

A.697
B.423
C.540
D.328
E.None of these

Sol. 328 – 150 = 178
X – 519 = 178

X = 697.

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