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A bag contains 4 red and 8 black balls. A ball is drawn from the bag. What is the probability of getting a red ball ?​

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Answer:A bag contains 5 RED and 4 black balls

A bag contains 4 red and 4 black balls, another bag contains 2 red and 6 black balls. One of the two bags is selected at random and a ball is drawn from the bag which is FOUND to be red. Find the PROBABILITY that the ball is drawn from the first bag

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