There are two bags. one bag contains 4 white and 2 black balls. second bad contains 5 white and 4 black balls. 2 balls are transferred from first bag to second bag. then one ball is taken from the second bag. the probability that the ball is white is ?
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in first bag prob of wit= 4/6= 2/3
in secnd bag porb of wit= [5+2/3]/9=17/27
in secnd bag porb of wit= [5+2/3]/9=17/27
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