Question

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

2, 9, 28, 65, 126, ?

1. 234
2. 217
3. 134
4. 126
5. None of these

Answer 1

Correct Answer - Option 2 : 217

Calculation:

The logic behind the given series is as follows:

2     9      28     65     126         217

    7    19     37      61        91   

       12   18      24      30

Logic: double difference between the consecutive terms is consecutive multiples of 6.

∴ The value of '?' is 217.