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A bag A contains 2 white and 3 red balls...

A bag `A` contains `2` white and `3` red balls and another bag `B` contains `4` white and `5` red balls. One ball is drawn at random from a bag chosen at random and it is found to be red. Find the probability that it was drawn from bag `B`.

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MODERN PUBLICATION-SAMPLE PAPER 2018-EXERCISE
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