Which of the following numbers will replace the question mark (?) in the given series?
168, 191, 218, 249, 284, ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 323.
168 + 23 = 191, 191 + 27 = 218, 218 + 31 = 249, 249 + 35 = 284, 284 + 39 = 323