MBA Exam

There are 3 urns A,B and C,A contains 4 red balls and 3 black balls.Urn B contains 5 red balls and 4 black balls,Urn C contains 4 red balls and 4 black balls.One ball is drawn from each of these urns.What is the probability that 3 balls drawn consist of 2 red balls and a black ball??

1) post ur answers with formula applied

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