There are three urns A, B and C. Urn A contains 4 white balls and 5 blue balls. Urn B contains 4 white balls and 3 blue balls. Urn C contains 2 white balls and 4 balls. One ball is drawn from each of these urns. What is the probability that out of these three balls drawn, two are white balls and one is a blue ball?

Explanation

`{Urn} A rightarrow 4 omega 5 B `


`{Urn} B rightarrow 4 omega 3 B `


`{Urn} C rightarrow 2 omega 4 B`





`text { Ist Case }=frac{4}{9} times frac{4}{7} times frac{4}{6}=frac{64}{378}`



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