Select the number from among the given options that can replace the question mark (?) in the following series.
31, 31, 34, 170, 177, ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1, i.e., 1593.
31 × 1 = 31, 31 + 3 = 34, 34 × 5 = 170, 170 + 7 = 177, 177 × 9 = 1593.