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Identify the number that does NOT belong to the following series.
1, 4, 9, 15, 25, 36
The given series is 1, 4, 9, 15, 25, 36
The logic here is
1$$^2$$ = 1
2$$^2$$ = 4
3$$^2$$ = 9
4$$^2$$ = 16
5$$^2$$ = 25
6$$^2$$ = 36
16 should be in the place of 15 in the series
$$\therefore\ $$15 does not belong to the given series
Hence, the correct answer is Option C
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