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If P(A)=7/13, P(B)=9/13 and P(AnnB)=4/13...

If `P(A)=7/13, P(B)=9/13 and P(AnnB)=4/13`, evaluate `P(A/B)`.

A

`4/9`

B

`9/4`

C

`7/9`

D

`4/7`

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