Which of the following numbers will replace the question mark (?) in the given number series?
209, 318, 427, 536, ?, 754
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 645.
Given series: 209, 318, 427, 536, ?, 754
209 + 109 = 318; 318 + 109 = 427; 427 + 109 = 536; 536 + 109 = 645; 645 + 109 = 754