IBPS REASONING PRACTICE QUESTIONS

Series Completion:

Directions : In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.

1.     1,  9,  25, 49, ?, 121
a]  64                     b]  81                  c] 91                   d] 100

2.     4, 7, 12, 19, 28, ?
a]  30                     b]  36                  c] 39                   d] 49

3.     11, 13, 17, 19, 23, 25, ?
a]  26                     b]  27                  c] 29                   d] 37

4.     6, 12, 21, ?, 48
a]  33                     b]  38                  c] 40                   d] 45

5.     2, 5, 9, ?, 20, 27
a]  14                     b]  16                  c] 18                   d] 24

6.     6, 11, 21, 36, 56, ?
a]  42                     b]  51                  c] 81                   d] 91

7.     10, 18, 28, 40, 54, 70, ?
a]  85                     b]  86                  c] 87                   d] 88

8.     120, 99, 80, 63, 48, ?
a]  35                     b]  38                  c] 39                   d] 40

9.     22, 24, 28, ?, 52, 84
a]  36                     b]  38                  c] 42                   d] 46

10.   4832, 5840, 6848, ?
a]  7815                  b]  7846               c] 7856                d] 7887

11.   10, 100, 200, 310, ?
a]  400                   b]  410                c] 420                  d] 430

12.   0, 2, 8, 14, ?, 34
a]  20                     b]  23                  c] 24                   d] 25

13.   28, 33, 31, 36, ?, 39
a]  32                     b]  34                  c] 38                   d] 40

14.   125, 80, 45, 20, ?
a]  5                       b]  8                    c] 10                   d] 12

15.   1,            5, 13, 25, 41, ?
a]  51                     b]  57                  c] 61                   d] 63

16.   2,            15, 41, 80, ?
a]  111                   b]  120                c] 121                  d] 132

17.   6, 17, 39, 72, ?
a]  83                     b]  94                  c] 116                  d] 127

18.   325, 259, 204, 160, 127, 105, ?
a]  94                     b]  96                  c] 98                   d] 100

19.   1, 4, 10, 22, 46, ?
a]  64                     b]  86                  c] 94                   d] 122

20.   0.5, 0.55, 0.65, 0.8, ?
a]  0.9                    b]  0.82               c] 1                     d] 0.95

21.   5, 6, 9, 15, ?, 40
a]  21                     b]  25                  c] 27                   d] 33

22.   2, 3, 5, 7, 11, ?, 17
a]  12                     b]  13                  c] 14                   d] 15

23.   4, 9, 25, ?, 121, 169, 289, 361
a]  49                     b]  64                  c] 81                   d] 87

24.   1, 9, 25, 49, 81, ?
a]  100                   b]  112                c] 121                  d] 144

25.   1, 1, 4, 8, 9, 27, 16, ?
a]  32                     b]  64                  c] 81                   d] 256

26.   4, 12, 36, 108, ?
a]  144                   b]  216                c] 304                  d] 324

27.   1, 1, 2, 6, 24, ?, 720
a]  100                   b]  104                c] 108                  d] 120

28.   240, ?, 120, 40, 10, 2
a]  180                   b]  240                c] 420                  d] 480
29.   4, 6, 9, 13 , ?
a]  17                  b]  19                  c] 20                d] 22

30.   5760, 960, ?, 48, 16, 8
a]  120                   b]  160                c] 192                  d] 240

31.   1, 2, 6, 7, 21, 22, 66, 67, ?
a]  70                     b]  134                c] 201                  d] 301

32.   48, 24, 96, 48, 192, ?
a]  76                     b]  90                  c] 96                   d] 98

33.   1,  2, 3, 6, 9, 18, ?, 54
a]  18                     b]  27                  c] 36                   d] 81

34.   165, 195, 255, 285, 345, ?
a]  375                   b]  390                c] 420                  d] 435

35.   9,            27, 31,         155, 161, 1127, ?
a]  316                   b]  1135               c] 1288                d] 2254

36.   2, 3, 3, 5, 10, 13, ?, 43, 172, 177
a]  23                     b]  38                  c] 39                   d] 40

37.   3, 15, ?, 63, 99, 143
a]  27                     b]  35                  c] 45                   d] 56

38.   7,            26, 63,         124, 215, 342, ?
a]  391                   b]  421                c] 481                  d] 511

39.   3,            7, 15, ?,           63, 127
a]  30                     b]  31                  c] 47                   d] 52

40.   4, 10, ?, 82, 244, 730
a]  24                     b]  28                  c] 77                   d] 218

Answers:

1.       b     2.       c     3.       c     4.       a     5.       a     6.       c     7.       d     8.       a     9.       a         10.  c        11.  d        12.  c        13.  b        14.  a        15.  c        16.  d        17.  c        18.  a    19.  c        20.  c        21.  b        22.  b        23.  a        24.  c        25.  b        26.  d        27.  d   28.  b        29.  c        30.  c        31.  c        32.  c        33.  b        34.  d        35.  b        36.  c    37.  b        38.  d        39.  b        40.  b