Which of the following numbers will replace the question mark (?) in the given series?
9, 54, 59, ?, 239 , 478
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 236.
Given series: 9, 54, 59, ?, 239 , 478
9 × 6 = 54; 54 + 5 = 59; 59 × 4 = 236; 236 + 3 = 239; 239 × 2 = 478