Which of the following numbers will replace the question mark (?) in the given series?
1, 3, 10, 41, ?, 1237
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 206.
1 × 2 + 1 = 3, 3 × 3 + 1 = 10, 10 × 4 + 1 = 41, 41 × 5 + 1 = 206, 206 × 6 + 1 = 1237