Question

In the following number series, a wrong number is given. Find out the wrong number.

225, 226, 231, 257, 273, 398

1. 225
2. 226
3. 231
4. 273
5. 398

Answer 1

Correct Answer - Option 3 : 231

Calculation:

The logic follows here is:

⇒ 225 + 1³ = 226

⇒ 226 + 2² = 230

⇒ 230 + 3³ = 257

⇒ 257 + 4² = 273

⇒ 273 + 5³ = 398

∴ 230 is the wrong term.