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29-05-2018
Mathematics

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A bag contains 3 blue marbles, 5 red marbles, and 4 green marbles. you choose one without looking. what is the probability that it is red or green

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meggers86 meggers86

29-05-2018

There are 12 marbles total. The odds of choosing a red is 5/12, and the odds of picking a green are 4/12. 5+4=9, so the odds of picking red or green are 9/12 or 3/4 simplified.

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