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A basket contains 6 blue, 2 red, 4 gr...

A basket contains 6 blue, 2 red, 4 green and 3 yellow balls. If two balls are picked up at random, what is the probability that 2 are red and 2 are green? `4/(15)` (b) `5/(27)` (c) `1/3` (d) `2/(455)` (e) None of these

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