Which number will replace the question mark (?) in the following series?
28, 30, ?, 188, 754, 3772
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 62.
28 × 1 + 2 = 30; 30 × 2 + 2 = 62; 62 × 3 + 2 = 188; 188 × 4 + 2 = 754; 754 × 5 + 2 = 3772