Question

Select the number from among the given options that can replace the question mark (?) in the following series.

69, 55,  26, 13, ? 

1. 2
2. 5
3. 3
4. 4

Answer 1

Correct Answer - Option 4 : 4

The given series: 69, 55,  26, 13, ? 

The pattern followed here is:

6 × 9 + 1 = 55

5 × 5 + 1 = 26

2 × 6 + 1 = 13

1 × 3 + 1 = 4

Hence, the next number of the series would be "4".