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Mary puts 3 red marbles, 3 blue marbles, 4 green marbles, and 10 yellow marbles into a bag. Mary then picks one marble out of the bag. What is the probability of picking a yellow marble?
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Mary puts 3 red marbles, 3 blue marbles, 4 green marbles, and 10 yellow marbles into a bag. Mary then picks one marble out of the bag. What is the probability of picking a yellow marble?

User Jickson
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1 Answer

5 votes
1/2 of chance. 10 yellow out of 20. Lowest terms for 10/20 is 1/2.
User Arrrrrrr
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