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Quantitative Aptitude Quiz For IBPS Clerk Prelims 2021-14th December

Directions (1-15): What should come in place of the question mark (?) in the following number series?

                                              Quantitative Aptitude Quiz For IBPS Clerk Prelims 2021-14th December_3.1
Q1. 15, 35, 45, 55, 70, ?
(a) 95
(b) 90
(c) 80
(d) 100
(e) 110

Q2. ? , 12.7, 4.6 , 1.9 , 1, 0.7
(a) 35
(b) 37
(c) 28.9
(d) 85.6
(e) 25.4

Q3. 497, 466, 437, 414, ?, 378
(a) 395
(b) 397
(c) 399
(d) 401
(e) 393

Q4. 16, 7, 5, 7, 24, ?
(a) 191
(b) 189
(c) 187
(d) 185
(e) 183

Q5. ?, 60, 39, 66, 33, 72
(a) 45
(b) 42
(c) 39
(d) 48
(e) 36

Q6. 38, 43, 53, 68, 88, ?
(a) 109
(b) 113
(c) 115
(d) 118
(e) 108

Q7. 13, 21, 45, 117, 333, ?
(a) 993
(b) 976
(c) 981
(d) 965
(e) 963

Q8. 7, 14, 35, 98, 287, ?
(a) 879
(b) 845
(c) 843
(d) 893
(e) 854

Q9. 8, 16, 43, 107, 232, ?
(a) 392
(b) 364
(c) 448
(d) 408
(e) 452

Q10. 20, 37, 56, 79, 108, ?
(a) 139
(b) 152
(c) 163
(d) 157
(e) 137

Q11. 3, 3, 9, 45, 315, ?
(a) 2205
(b) 2835
(c) 2520
(d) 3465
(e) 2385

Q12. 4.5, 10, 12, 25, 27, 55, ?
(a) 57
(b) 58
(c) 111
(d) 53
(e) 110

Q13. 131, 707, 1107, 1363, 1507, ?
(a) 1651
(b) 1523
(c) 1571
(d) 1588
(e) 1581

Q14. 1, 1.5, 4.5, 27, 324, ?
(a) 7766
(b) 7666
(c) 7676
(d) 7776
(e) 7667

Q15. 17, 40, 109, 224, 385, ?
(a) 582
(b) 500
(c) 546
(d) 592
(e) 638

Solutions

Quantitative Aptitude Quiz For IBPS Clerk Prelims 2021-14th December_4.1

Quantitative Aptitude Quiz For IBPS Clerk Prelims 2021-14th December_5.1

S11. Ans.(b)
Sol.
Pattern is
3 × 1 = 3
3 × 3 = 9
9 × 5 = 45
45 × 7 = 315
315 × 9 = 2835

S12. Ans.(a)
Sol.
Series is
4.5 × 2 + 1 = 10
10 × 1 + 2 = 12
12 × 2 + 1 = 25
25 × 1 + 2 = 27
27 × 2 + 1 = 55
55 × 1 + 2 = 57

S13. Ans.(c)
Sol.
Series is
131 + 576 = 707
707 + 400 = 1107
1107 + 256 = 1363
1363 + 144 = 1507
1507 + 64 = 1571

S14. Ans.(d)
Sol.
Series is
1 × 1.5 = 1.5
1.5 × 3 = 4.5
4.5 × 6 = 27
27 × 12 = 324
324 × 24= 7776

S15. Ans.(d)
Sol.
17 + 23 × 1 = 40
40 + 23 × 3 = 109
109 + 23 × 5 = 224
224 + 23 × 7 = 385
385 + 23 × 9 = 592

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