Quantitative Aptitude Quiz for Prelims Exams- SBI & IBPS 2020- 13th December

Directions (1 – 10): What will come in the place of question (?) mark in the following number series:
Q1. 2, 10, 30, 68, ?, 222
(a) 126
(b) 136
(c) 120
(d) 130
(e) 111

Q2. 4620, 420, 60, ?, 4, 2
(a) 30
(b) 12
(c) 48
(d) 25
(e) 8.

Q3. 2, ?, 17, 65, 257, 1025.
(a) 8
(b) 10
(c) 5
(d) 7
(e) 4

Q4. 4096, 225, 2744, 169, 1728, ?
(a) 144
(b) 1000
(c) 343
(d) 729
(e) 121

Q5. 100, 150, 106, 155, 110, ?
(a) 158
(b) 112
(c) 121
(d) 195
(e) 90

Q6. 1, 11, 99, 693, 3465, ?
(a) 10335
(b) 10285
(c) 10245
(d) 10395
(e) 10375

Q7. 2, 1, 1, 1.5, 3, ?
(a) 5
(b) 7.5
(c) 8
(d) 6.5
(e) 9.5

Q8. 28, 40, 60, 90, 132, ?
(a) 188
(b) 190
(c) 174
(d) 212
(e) 182

Q9. 12, 20, 47, 111, 236, ?
(a) 452
(b) 478
(c) 410
(d) 376
(e) 332

Q10. 62, 80, 116, 170, 242, ?
(a) 356
(b) 332
(c) 290
(d) 384
(e) 428

Directions (11 – 15) : Find the wrong number in the following number series ?
Q11. 3, 10, 31, 94, 283, 848, 2551
(a) 31
(b) 10
(c) 2551
(d) 848
(e) 3

Q12. 8, 127, 1015, 4059, 8117, 8116, 4055
(a) 8
(b) 4055
(c) 127
(d) 4059
(e) None of these

Q13. 180, 200, 225, 254, 286, 322, 355
(a) 322
(b) 180
(c) 286
(d) 355
(e) 200

Q14. 1750, 1750, 1743, 1717, 1654, 1529, 1315
(a) 1750
(b) 1743
(c) 1529
(d) 1717
(e) 1315

Q15. 5, 19, 75, 299, 1195, 4779, 19125
(a) 5
(b) 19
(c) 299
(d) 4779
(e) 19125

Practice More Questions of Quantitative Aptitude for Competitive Exams:

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Solutions

S11. Ans(d)
Sol.
Wrong number = 848
Pattern of series is,
3 ×3+1=10
10 ×3+1=31
31 ×3+1=94
94 ×3+1=283
283×3+1=850
850 ×3+1=2551
So, 850 should be in the place of 848

S12. Ans(b)
Sol.
Wrong number = 4055
Pattern of series –
8 ×16-1=127
127 ×8-1=1015
1015 ×4-1=4059
4059 ×2-1=8117
8117 ×1-1=8116
8116 ×0.5-1=4057
So, 4057 should be in the place of 4055

S15. Ans(e)
Sol.
Wrong number = 19125
Pattern of series –
5 ×4-1= 19
19 ×4-1=75
75 ×4-1=299
299 ×4-1=1195
1195 ×4-1=4779
4779 ×4-1=19115
So, should be 19115 in the place of 19125