SSC JE Mechanical Engineering 11 Oct 2020 Shift 1 Papers

Question : 41 of 200

Marks: +1, -0

Select the number that can replace the question mark (?) in the following series.
7, 65, 215, 513, 999, ?

Solution:

The pattern follows here is :

\table 7, 65, 215, 513, 999,1729 ;↓ ,↓ ,↓ ,↓ ,↓ ,↓ ;(2^3-1),(4^3+1),(6^3+1),(8^3+1),(10^3+1),(12^3+1)

Hence, the correct answer is "1729".

Go to Question:

Prev Question

Next Question