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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

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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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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User Thomas Johan Eggum
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1 Answer

6 votes
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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User Mike Dg
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