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If A and B are any two events such that `P(A)=(2)/(5)` and `P(AnnB)=(3)/(20)`, then the conditional probability, `P(A//(A'uuB'))`, where `A'` denotes the complement of A, is equal to

A

`(11)/(20)`

B

`(5)/(17)`

C

`(8)/(17)`

D

`(1)/(4)`

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The correct Answer is:
B
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