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

100, 221, 77, 245, 50, 275


1. 245
2. 275
3. 77
4. 100
5. 221

1 Answer

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Best answer
Correct Answer - Option 1 : 245

Given:

100, 221, 77, 245, 50, 275

Calculation:

Considering the above series, the logic should be

100 + (11)2 = 221

221 - (12)2 = 77

77 + (13)2 = 246

246 - (14)2 = 50

50 + (15)2 = 275

∴ The wrong term in this series is 245.

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