Which of the following numbers will replace the question mark (?) in the given series?
165, ? 195, 210, 225, 240
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 180.
Given series: 165, ? 195, 210, 225, 240
165 + 15 = 180; 180 + 15 = 195; 195 + 15 = 210; 210 + 15 = 225; 225 + 15 = 240