Select the number from among the given options that can replace the question mark (?) in the following series.
13, 24, 46, 90, 178,?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 354.
13 × 2 - 2 = 24; 24 × 2 - 2 = 46; 46 × 2 - 2 = 90; 90 × 2 - 2 = 178; 178 × 2 - 2 = 354