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If P(B)=(3)/(4) P(A cap B cap overset(-)...

If P(B)`=(3)/(4)` P(A cap B cap overset(-)(c ))=(1)/(3)` and `P(overset(" "-)(A) cap B cap overset(-)(C ))=(1)/(3)`, then `P(B cap C)` is equal to

A

`(1)/(12)`

B

`(1)/(6)`

C

`(1)/(16)`

D

`(1)/(9)`

Text Solution

Verified by Experts

The correct Answer is:
A

Given, `P(B)=(3)/(4),P(AnnBnnbarC)=(1)/(3)`

and `P(barAnnBnnbarC)=(1)/(3)`
which can be shown in Venn diagram.
`:. P(BnnC)=P(B)-{P(AnnBnnbarC+P(barAnnBnnbarC))}`
`=(3)/(4)-((1)/(3)+(1)/(3))=(3)/(4)-(2)/(3)=(1)/(12)`
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