Which of the following numbers will replace the question mark (?) in the given series?
473, 517, 561, ?, 649, 693
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 605.
Given Series : 473, 517, 561, ?, 649, 693
Logic: Difference is 44
517 - 473 = 44; 561 - 517 = 44; a - 561 = 44 → a = 605