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If n integers taken at random are multip...

If n integers taken at random are multiplied together, then the probability that the last digit of the product is 1, 3, 7 or 9 is

A

`2^(n)/5^(n)`

B

`(4^(n)-2^(n))/5^(n)`

C

`4^(n)/5^(n)`

D

None of these

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The correct Answer is:
A
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