Find the missing number in the sequence. 504, ?, 990, 1320, 1716

Correct Answer : Option A

Explanation –

We have the terms of the given series formed in the following manner

⇒ 504 = 83 – 8

⇒ ? = 93 – 9

⇒ 990 = 103 – 10

⇒ 1320 = 113 – 11

⇒ 1716 = 123 – 12

Hence, ? = 729 – 9 = 720