A bag contains 15 marbles, some red, some green, and some blue. Three Fifths (3/5) of the marbles are red. The number of blue and green marbles are the same. What is the probability of removing a green marble followed by a red marble without replacing

This question was on an exam I recently took. I know there are nine red marbles, three green and three blue. I also know the probablility gets better for pulling a red marble. Just don't know where to go from here and how to get there. Thanks for your help.
Question asked by: Alonzo

Asked on: 02 May 2012

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