The correct answer is C
16, 9, ?, 114.25, 750.625, 6396.3125
124, 128, ?, 135, 110, 146
18, 21, 45, 138, 555, ?
43, 56, 82, ?, 173, 238
18, 34, 70, 134, ?, 378
3 4 10 33 136 ?
...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, ?
561, 554, 540, 519, 491, ?
289 169 121 ? 25 9
...244, 179, 129, 92, 66, ?
