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Two events A and B are such that P(A)=1/...

Two events A and B are such that `P(A)=1/4,P(A//B)=1/2` and `P(B//A)=2/3` then the value of `P(B)` is:

A

`P(AcupB)ge1/2`

B

`P(AcapB)le1/3`

C

`P(AcapbarB)ge1/6`

D

`P(barAcupbarB)le2/3`

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