What should come in place of the question mark (?) in the given series?
7 12 16 30 34 66 70 ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 138.
Given series: 7 12 16 30 34 66 70 ?
I. 7 + 9 = 16; 16 + 18 = 34; 34 + 36 = 70
II. 12 + 18 = 30; 30 + 36 = 66; 66 + 72 = 138