Which of the following numbers will replace the question mark (?) in the given series?
213, 199, 235, 221, 257, 243, ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 279.
Given series: 213, 199, 235, 221, 257, 243, ?
213 - 14 = 199; 199 + 36 = 235; 235 - 14 = 221; 221 + 36 = 257; 257 - 14 = 243; 243 + 36 = 279