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Question

The square of 39,00,000 ends with ______ number of zeroes.

A
5
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B
10
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C
14
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D
25
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Solution

The correct option is B 10
If the number of zeros at the end of the number is n then the number of zeros at the end of square of that number will be 2n.
In the given number 39,00,000, there are 5 zeros.
Therefore, the number of zeros at the end of square of 39,00,000 will be 2×5=10.

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