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A bag contains 8 white and 7 black balls...

A bag contains 8 white and 7 black balls and another bag contains 5 white and 4 black balls. A ball is drawn at random from the first bag and put it into second bag. Now if a ball is drawn at random from the second bag. Find the probability that the ball drawn is white.

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CHHAYA PUBLICATION-QUESTION PAPER -2018-WBJEE
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