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