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A box contains 10 red marbles, 20 blue marbles and 30 green marbles. 5 marbles are drawn at random. From the box, what is the probability that : (i) all are blue? (ii) at least one is green? |
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Answer» A box contains 10 red marbles, 20 blue marbles and 30 green marbles. 5 marbles are drawn at random. From the box, what is the probability that : (i) all are blue? (ii) at least one is green? |
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