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10 green balls. You are allowed to move the balls between
the boxes so that There are two boxes, one containing 10 red
balls and the other containing when you choose a box at
random and a ball at random from the chosen box, the
probability of getting a red ball is maximized. This maximum
probability is
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Answer Posted / brajendra tripathi
shifting is allowed therefore shift 9red balls to green bag
which makes it 1 nd 19 (red balls in each bag)
so probability = (1/2)*1+1/2(9/19)=14/19
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