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One bag contains 4 white and 5 black balls. Another bag contains 6 white and 7 black balls. A ball is transferred from first bag to the second bag and then a ball is drawn from the second bag. Find the probability that the ball dawn is white. Select the correct answer from above options

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When we calculate the probability => we will consider two cases one if the ball transferred is white and then find out the probability of white ball and other if the ball transferred is black and then find out the probability of white ball. Required probability=>`4/9xx7/14+5/9xx6/14=29/63`

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