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If two events A and B are such that P(A^c) = 0.3, P(B) = 0.4 and P(A ∩B^c) = 0.5 then P[B/(A ∪ B^c)] =... .

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If two events A and B are such that P(Ac) = 0.3, P(B) = 0.4 and P(A ∩Bc) = 0.5 then P[B/(A ∪ Bc)] =... . 

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Best answer

 P(Ac) = 0.3 

⇒ P (A) = 0.7

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