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Question

Find the last 3 digits of 2563×6325.

A
3,7,5
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B
4,7,5
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C
3,4,5
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D
2,7,5
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Solution

The correct option is C 3,7,5
The last three digits of 25 for power
251=025
252=625
253=15625
For any power of 25 (except 1) the last three digits end with 625
last three digits of 2563=625
Now 625×63=39375last three digits=375
last three digits of 625×63n=375
if n is odd
The last three digits of 2563×6325375

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