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प्रश्न
If the square of a number ends with 10 zeroes, how many zeroes will the number have?
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उत्तर
We know that if a number ends with n zeros Then its square will have 2n zeroes Conversely, if square of a number have 2n zeros at their ends then the number will have n zeroes
The square of a number ends 10 zeroes, then the number will have `(10)/(2)` = 5 zeroes
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