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In each of the following number series, the wrong number is given, find out that number.

125, 169, 221, 281, 350


1. 350
2. 221
3. 125
4. 169
5. None of these

1 Answer

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Correct Answer - Option 1 : 350

Calculation:

\({10^2} + 25 = 125\)

\({12^2} + 25 = 169\)

\({14^2} + 25 = 221\)

\({16^2} + 25 = 281\)

\({18^2} + 25\) = 349

∴ Wrong number is 350

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