Question

What will come in the place of the question mark ‘?’ in the following question?

15, 15, 31, 95, 383, ?

1. 1815
2. 1915
3. 1919
4. 1819
5. 1935

Answer 1

Correct Answer - Option 3 : 1919

Calculation:

Given:

The logic behind the given series is as follows:

15 × 1 + 0 = 15

15 × 2 + 1 = 31

31 × 3 + 2 = 95

95 × 4 + 3 = 383

383 × 5 + 4 = 1,919

∴ The value of '?' is 1919.