The correct answer is C
124, 128, ?, 135, 110, 146
5, 5, 15, 75, ?, 4725
4, 6, 12, 30, ?, 315, 1260
8, 58, 75, 94, 115, ?
161 173 191 215 245 ?
...123, 122, 114, 87, ?, -102
6400, 1600, ?, 80, 16, 4
9 14 38 129 ? 2705 16260
...What will come in place of the question mark (?) in the following series?
2.5, 6.5, 18.5, 54.5, 162.5, 486.5, ?
32, 64, 144, ?, 990, 2970
