Let A and B be two events such that \[P\,(A)=0.3\] and \[P\,(A\cup B)=0.8\]. If A and B are independent events, then \[P(B)=\] [IIT 1990; UPSEAT 2001, 02]

Let A and B be two events such that \[P\,(A)=0.3\] and \[P\,(A\cup B)=

1.	Let A and B be two events such that \[P\,(A)=0.3\] and \[P\,(A\cup B)=0.8\]. If A and B are independent events, then \[P(B)=\] [IIT 1990; UPSEAT 2001, 02]
A.	\[\frac{5}{6}\]
B.	\[\frac{5}{7}\]
C.	\[\frac{3}{5}\]
D.	\[\frac{2}{5}\]
Answer» C. \[\frac{3}{5}\]

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Let A and B be two events such that \[P\,(A)=0.3\] and \[P\,(A\cup B)=0.8\]. If A and B are independent events, then \[P(B)=\] [IIT 1990; UPSEAT 2001, 02]

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