If A and B are events such that {\P}(A \cup B)=0.5, P(\overline{B})=0.8 and P(A ∣ B)=0.4, then what is P(A \cap B) equal to?

UPSC NDA I 2011 Mathematics Paper

Question : 43 of 120

Marks: +1, -0

If A and B are events such that P(A∪B)=0.5, P(B)=0.8 and P(A∣B)=0.4, then what is P(A∩B) equal to?

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