Question

A bag has 4 red and 5 black balls and asecond bag has3 red and 7 black balls one ball is drawn from 1 st and 2 bals from 2 nd .find the probability that out of 3 Ball 2 are black and one is red

Answer 1

probability of red ball= 1/7

probability of black ball= 2/ 12



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Answer 2

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Probability of red Ball= 1÷7

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Probability of black Ball= 2÷12

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