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Three indentical boxes contain red and w...

Three indentical boxes contain red and white balls. The first box contains 3 red and 2 white, the second box 4 red and 5 white and the third box 2 red and 4 white balls. A box is chosen at random and a ball is drawn from it. If the drawn ball is red, what is the probability that the second box is chosen ?

Text Solution

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The correct Answer is:
the probability that the problem is solved by one student only `=(37)/(84)`
the probability that the problem is not solved `=(5)/(21)`
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