Question

What should come in place of the question mark '?' in the following number series?

10, 11, 7, 34, 18, ?

1. 140
2. 143
3. 142
4. 145
5. None of these

Answer 1

Correct Answer - Option 2 : 143

Given:

10, 11, 7, 34, 18, ?

Calculation:

From the above series, the logic can be explained as

10 + 1³ = 11

11 - 2² = 7

7 + 3³ = 34

34 - 4² = 18

18 + 5³ = 143

∴ The required value of "?" is 143