Question

What will come next in the following series: 90, 72, 56, 42, 30, 20, __
1. 18
2. 16
3. 12
4. 10

Answer 1

Correct Answer - Option 3 : 12

Given series is: 90, 72, 56, 42, 30, 20, __

The pattern is:

10 × 9 = 90

9 × 8 = 72

8 × 7 = 56

7 × 6 = 42

6 × 5 = 30

5 × 4 = 20

4 × 3 = 12

∴ Next number in the series is 12