Which of the following numbers will replace the question mark (?) in the given series?
1, 9, 65, 457,?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 3201.
Given series: 1, 9, 65, 457,?
The series follows this pattern:
1 × 7 + 2 = 7 + 2 = 9
9 × 7 + 2 = 63 + 2 = 65
65 × 7 + 2 = 455 + 2 = 457
457 × 7 + 2 = 3199 + 2 = 3201
So, the next term in the series is 3201.