Which of the following numbers will replace the question mark (?) in the given series?
23629, 23593, 23568, ?, 23543, 23539
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 23552.
23629 - 62 = 23593; 23593 - 52 = 23568; 23568 - 42 = 23552; 23552 - 32 = 23543; 23543 - 22 = 23539