Select the number from among the given options that can replace the question mark(?) in the following series.
5, 10, 17, 26, 37, 50,?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 65.
The series follows this pattern:
5 + 5 = 10, 10 + 7 = 17, 17 + 9 = 26, 26 + 11 = 37, 37 + 13 = 50, 50 + 15 = 65