Which of the following numbers will replace the question mark (?) in the given series?
261, 232, 203, ?, 145, 116
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 174.
261 - 29 = 232; 232 - 29 = 203; 203 - 29 = 174; 174 - 29 = 145; 145 - 29 = 116