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If A and B are two events such that `P((A)/(B))=(1)/(3),P((B)/(A))=(1)/(2)`and `P(AcapB)=(1)/(7)`then `P(AcupB)`is:

A

`(2)/(7)`

B

`(3)/(7)`

C

`(4)/(7)`

D

`(1)/(7)`

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The correct Answer is:
A
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