There are two bags i and ii. bag i contains 3 white and 4 black balls and bag ii contains 5 white and 6 black balls. one ball is drawn at random from one of the bags and is found to be white. find the probability that it was drawn from bag i.
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Total balls = 3+4+5+6=18
Balls in bag 1 = 3+4 = 7
Probability= No. of favourable outcomes/No. of total outcomes= 3/7
Balls in bag 1 = 3+4 = 7
Probability= No. of favourable outcomes/No. of total outcomes= 3/7
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