Which of the following numbers will replace the question mark (?) in the given series?
23, 25, 28, 33, ?, 51, 64
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 40.
Given series: 23, 25, 28, 33, ?, 51, 64
23 + 2 = 25; 25 + 3 = 28; 28 + 5 = 33; 33 + 7 = 40; 40 + 11 = 51; 51 + 13 = 64