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The probability of a man hitting a targe...

The probability of a man hitting a target is `(2)/(5)` . He fires at the target k times (k, a given number) . Then the minimum k, so that the probability of hitting the targer at least once is more than `(7)/(10)`, is

A

3

B

5

C

2

D

4

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The correct Answer is:
A
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