sydneyl sydneyl

17-05-2017
Mathematics

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A bag contains 18 blue marbles and 12 red marbles. If 2 marbles were removed without being replaced, what is the probability that the first marble will be blue and the second will be red

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nikeballer nikeballer

17-05-2017

blue- 18/30 or 9/15
red- 12/30 or 2/5

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