Select the option that will replace the question mark (?) in the given series.
49, 53, 61, 73, 89,?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 109.
The series follows this pattern:
49 + 4 = 53, 53 + 8 = 61, 61 + 12 = 73, 73 + 16 = 89, 89 + 20 = 109