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If A and B are two independent events su...

If A and B are two independent events such that `P(A) = 7/10`, `P(B')=alpha`, `P(AcupB) = 8/10`, then `alpha` =

A

`2/7`

B

`5/7`

C

1

D

`3/7`

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The correct Answer is:
A
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