Question

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

121, 144, 173, 204, ?

1. 216
2. 241
3. 204
4. 225
5. 273

Answer 1

Correct Answer - Option 2 : 241

Calculation:

The series follows the pattern:

⇒ 121 + 23 = 144

⇒ 144 + 29 = 173

⇒ 173 + 31 = 204

⇒ 204 + 37 = 241

∴ The next number of this series is 241.