The correct answer is C
20.5, 30, 40.5, 53, 64.5, 78
547, 594, 640, 691, 741, 792
45, 166, 310, 480, 675, 900
105 112 133 168 216 280 357
...8, 17, 35, 71, 143, 287
2, 6, 44, 462, 6930, 131670
1034, 2364, 4091, 6257, 9030, 12404
What will come in place of the question mark (?) in the following series?
120, 128, 144, 168, 240
420 342 272 212 156 110
...24, 34, 46, 76, 100, 140
