What will come at the place of question mark?
9, 31, 73, 141, 241, ?, 561
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 379.
Given series: 9, 31, 73, 141, 241, ?, 561
9 = 12 + 23
31 = 22 + 33
73 = 32 + 43
141 = 42 + 53
241 = 52 + 63
379 = 62 + 73
561 = 72 + 83