Exams › IBPS PO › Quantitative Aptitude

In the series 168, 195, 224, 255, 289, 323, find the wrong number.

1. 168
2. 224
3. 289
4. 323

Correct answer: 289

Solution

The differences are 27, 29, 31, 34, 34, which do not follow a consistent pattern. If the series is based on consecutive odd increments, the terms should be 168, 195, 224, 255, 288, 323, so 289 is incorrect.

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