Which of the following numbers will replace the question mark (?) in the given series?
18, 54, 29, 87, 62, 186, ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 161.
Given series: 18, 54, 29, 87, 62, 186, ?
18 × 3 = 54; 54 - 25 = 29; 29 × 3 = 87; 87 - 25 = 62; 62 × 3 = 186; 186 - 25 = 161