SOLUTION: An urn contains five red marbles, four green marbles, and three blue marbles. If one marble is drawn at random, what is the probability that it is either a green marble or a blue m

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Question 198415: An urn contains five red marbles, four green marbles, and three blue marbles. If one marble is drawn at random, what is the probability that it is either a green marble or a blue marble?
1.5/12
2.3/12
3.7/12
4.4/12

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
An urn contains five red marbles, four green marbles, and three blue marbles. If one marble is drawn at random, what is the probability that it is either a green marble or a blue marble?
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There are 3 blue and 4 green, a total of 7 out of 12.
It's 7/12.