21). The wrong number in the series 2, 9, 28, 65, 126, 216, 344 is
| A). 9 |
| B). 65 |
| C). 216 |
| D). 25 |
|
22). What should come in place of the question mark (?) in the following number series?
3, 3, 12, 108, ?, 42300
| A). 2700 |
| B). 1728 |
| C). 972 |
| D). 432 |
|
23). Which of the following numbers does not fit into the series?
14, 19, 29, 40, 44, 51, 59, 73
| A). 59 |
| B). 51 |
| C). 44 |
| D). 29 |
|
24). 50, 60, 75, 97.5, ?, 184.275, 267.19875
| A). 120.5 |
| B). 130.5 |
| C). 131.625 |
| D). 124.25 |
|
25). 12, 15, 36, ?, 480, 2415, 14508
| A). 115 |
| B). 109 |
| C). 117 |
| D). 121 |
|
26). 20, 21, 25, 34, 50, ?, 111
| A). 70 |
| B). 65 |
| C). 60 |
| D). 75 |
|
27). 13, 16, 22, 33, 51, ?
| A). 89 |
| B). 78 |
| C). 102 |
| D). 69 |
|
28). 39, 52, 78, 117, 169, ?
| A). 246 |
| B). 182 |
| C). 234 |
| D). 256 |
|
29). 24, 536, 487, 703, 678, ?
| A). 768 |
| B). 748 |
| C). 764 |
| D). 742 |
|
30). 656, 432, 320, 264, 236, ?
| A). 222 |
| B). 229 |
| C). 232 |
| D). 223 |
|
