Multiple choice

In each of the following number series, the wrong number is given, find out that number. 5541, 5506, 5425, 5304, 5135, 4910, 4621

  1. 5541

  2. 5506

  3. 5425

  4. 4621

  5. 4910
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A Correct answer
Explanation

The differences should be squares of consecutive odd numbers starting from 5²: 25, 81, 121, 169, 225, 289. The first difference is 35 instead of 25, making 5541 the wrong number (it should be 5531 to maintain the pattern).

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