Find the correctly spelt word.
The correct answer is C
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, ?
7 29 61 ? 211 349
...24 12 ? 24 96 768
6 11 32 111 ? 2345 14100
...625, 125, 375, 75, 225, 45, ?
16 25 36 49 64 ?
What will be the value of 'R + S' in the series: 'Q', 'R', 60, 'S', 240, 'P + 6Q'
415 246 367 ? 335 310
...4, 6, 12, 30, ?, 315, 1260
204, 401, 640, ?, 1105, 1406