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If P(A)=1/4, P(B)=3/8 and P(A cap B) = 1...

If `P(A)=1/4, P(B)=3/8` and `P(A cap B) = 1/5` then `P (B / A)` is equal to :

A

`4/5`

B

`8/15`

C

`2/3`

D

`5/8`

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