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Question
A number has 4 zeroes at the end. How many zeroes will its square have?
A number has 4 zeroes at the end. How many zeroes will its square have?
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Solution
The correct option is D 8
If a natural number has n zeroes at the end, its square have 2n zeroes at the end. So, the square of the number with 4 zeroes at the end will have 8 zeroes at the end.
8
If a natural number has n zeroes at the end, its square have 2n zeroes at the end. So, the square of the number with 4 zeroes at the end will have 8 zeroes at the end.
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