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Two urns contain coloured balls. urn 1 contains 4 blue, 3 green and 5 red balls. urn 2 contains 6 blue, 2 green and 3 red balls. a ball is selected at random from urn 1 and transferred to urn 2. a ball is then selected at random from urn 2. if the ball selected from urn 2 is red, what is the probability that the ball transferred from urn 1 was...(i)red?

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