Select the number that can replace the question mark (?) in the following series.
6, 9, 14, 21, 30, 41, ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 54.
6, 9, 14, 21, 30, 41, ?
6 + 3 = 9,
9 + 5 = 14,
14 + 7 = 21,
21 + 9 = 30,
30 + 11 = 41,
41 + 13 = 54