Quantitative Aptitude Quiz For RBI Grade B Phase 1 2023 -28th April

Direction (1 – 3): in the following questions, a series is given in which one term is wrong with which another series started. You have to find the wrong term in the given series then starting from that, find 5th term of new series so formed.
Example – 1, 2, 5, 21, 88, 445, 2676
Pattern of above series –
1 ×1+1=2
2 ×2+2=6
6 ×3+3=21
21 ×4+4=88
88 ×5+5=445
445 ×6+6=2676
So, wrong number = 5
Now new series start with wrong number, which is 5
So, new series
5 ×1+1=6
6 ×2+2=14
14 ×3+3=45
45 ×4+4=184
184 ×5+5=925
925 ×6+6=5556
So, 5th term of new series = 184

Q1. 3, 2, 6, 15, 60, 315, 1896
(a) 59
(b) 42816
(c) 7135
(d) 357
(e) 1432

Q2. 993, 850, 750, 688, 653, 638, 635
(a) 410
(b) 445
(c) 395
(d) 392
(e) 508

Q3. 20, 30, 50, 90, 160, 330, 650
(a) 230
(b) 470
(c) 310
(d) 190
(e) None of these

Direction (4 – 5): What will come in the place of (A), (B) & (C) in second (II) number series. (II) number series follows the same pattern as pattern of first (I) number series:
Q4. Series I – 2.4, 4, 7.2, 12, 18.4, 26.4, 36
Series II – (A), 20, 23.2, 28, (B), 42.4, (C)
(a) 18.4, 34.4, 54
(b) 18.4, 36, 52
(c) 18.4, 34.4, 52
(d) 18.4, 34.4, 56
(e) 19.4, 34.4, 52

Q5. Series I – 123, 171, 227, 291, 363, 443, 531
Series II – (A), (B), 402, 486, (C), 678, 786
(a) 258, 326, 580
(b) 258, 326, 576
(c) 256, 326, 578
(d) 258, 324, 578
(e) 258, 326, 578

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

Q6. 81, ?, 130, 147, 179, 194
(a) 108
(b) 100
(c) 115
(d) 111
(e) 104

Q7. ?, 378, 174, 438, 106, 514
(a) 154
(b) 172
(c) 128
(d) 226
(e) 202

Q8. 16, ?, 80, 172, 360, 740
(a) 48
(b) 52
(c) 36
(d) 44
(e) 40

Q9. 44, 106, 180, 262, ?, 442
(a) 474
(b) 498
(c) 466
(d) 484
(e)348

Q10. 64, 142, ?, 532, 844, 1234
(a) 312
(b) 364
(c) 488
(d) 436
(e) 298

Direction (11 – 15): Find the wrong number in the following number series given below :
Q11. 5, 86, 174, 276, 399, 558, 736
(a) 276
(b) 736
(c) 558
(d) 86
(e) 399

Q12. 9, 4.5, 6.5, 14, 57, 457, 7313
(a) 4.5
(b) 57
(c) 457
(d) 9
(e) 7313

Q13. 1728, 998, 1511, 1167, 1384, 1260, 1323
(a) 998
(b) 1511
(c) 1323
(d) 1167
(e) 1260

Q14. 2.5, 60, 720, 4320, 12960, 19480, 14580
(a) 720
(b) 4320
(c) 12960
(d)19480
(e) 14580

Q15. 11.5, 34, 58, 85, 116.5, 154, 200
(a) 200
(b) 85
(c) 116.5
(d) 154
(e) 34

Solutions