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a bag contains 10 black marbles, 20 white marbles, and 5 grey.you pick one without looking. what is the probability that the marble will be either white or grey

User Darry
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1 Answer

4 votes
Black - 10/35 (2/7)
White - 20/35 (4/7)
Grey - 5/35 (1/7)
User Ihdina
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