Select the number from among the given options that can replace the question mark (?) in the following series.
31, 41, 55, 73, 95,?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 121.
The series follows this pattern:
31 + 10 = 41, 41 + 14 = 55, 55 + 18 = 73, 73 + 22 = 95, 95 + 26 = 121