Which of the following numbers will replace the question mark (?) in the given series?
3, 8, 15, 26, 39, ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 56.
Given series: 3, 8, 15, 26, 39, ?
3 + 5 = 8; 8 + 7 = 15; 15 + 11 = 26; 26 + 13 = 39; 39 + 17 = 56