Select the number from among the given options that can replace the question mark (?) in the following series.
9, 38, 154, 618,?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 2474.
Given series: 9, 38, 154, 618,?
9 × 4 + 2 = 38; 38 × 4 + 2 = 154; 154 × 4 + 2 = 618; 618 × 4 + 2 = 2474