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In the given number series, which one of the following terms in the number series is wrong?11, 42, 39, 164, 525, 421, 749 [iOM ‘11]

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In the given number series, which one of the following terms in the number series is wrong?<br>11, 42, 39, 164, 525, 421, 749 [iOM ‘11]






 
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