Question

Select the number that can replace the question mark (?) in the following series.

5, 5, 15, 75, 525, ?

1. 2625
2. 1050
3. 4725
4. 1575

Answer 1

Correct Answer - Option 3 : 4725

The pattern followed here is:

5 × 1 = 5;

5 × 3 = 15;

15 × 5 = 75;

75 × 7 = 525;

525 × 9 = 4725

Hence 4725 is the correct answer.