Question

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

12, 13, 28, 87, 352, ?

1. 1568
2. 1765
3. 1159
4. 1059
5. None of these

Answer 1

Correct Answer - Option 2 : 1765

Given:

12, 13, 28, 87, 352, ?

Calculation:

⇒ 12 × 1 + 1 = 13

⇒ 13 × 2 + 2 = 28

⇒ 28 × 3 + 3 = 87

⇒ 87 × 4 + 4 = 352

⇒ 352 × 5 + 5 = 1765

∴ The value of ? is 1765.