If P(A)= (4)/(5) and P(A cap B)= (7)/(10...

If `P(A)= (4)/(5)` and `P(A cap B)= (7)/(10)` then `P(B//A)` is equal to = ……..

A

`(1)/(10)`

B

`(1)/(8)`

C

`(7)/(8)`

D

`(17)/(20)`

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The correct Answer is:

C

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