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Urn A contains six red and four black balls and urn B has four red and six black balls. One ball is drawn at random form urn A and placed in urn B. Then one ball is transfered at random form urn B to urn A. If one ball is now drawn at random from urn A, find the probability that is red. ? |
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Answer» Urn A contains six red and four black balls and urn B has four red and six black balls. One ball is drawn at random form urn A and placed in urn B. Then one ball is transfered at random form urn B to urn A. If one ball is now drawn at random from urn A, find the probability that is red. ? |
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