Which of the following numbers will replace the question mark (?) in the given series?
27, 38,?, 68, 87, 110
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 51.
Given series: 27, 38,?, 68, 87, 110
27 + 11 = 38; 38 + 13 = 51; 51 + 17 = 68; 68 + 19 = 87; 87 + 23 = 110