Which number will replace the question mark (?) to complete the given series?
15, 16, 20, 29, 45, ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 70.
Given series: 15, 16, 20, 29, 45, ?
15 + 1 = 16; 16 + 4 = 20; 20 + 9 = 29; 29 + 16 = 45; 45 + 25 = 70