Select the number from among the given options that can replace the question mark (?) in the following series.
4, 11, 20, 31, 44, ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 59.
Given Sequence: 4, 11, 20, 31, 44, ?
4 + 7 = 11;
11 + 9 = 20;
20 + 11 = 31;
31 + 13 = 44;
44 + 15 = 59