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Three marbles are randomly selected, without replacement, from a bag containing two red, three blue and four green marbles. What is the probability that one marble of each color is selected? Express your answer as a common fraction.

 Apr 12, 2021
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3*2*1 = 6 ways to choose 3 marbles of different colour. 

 

(2*3*4)/(9*8*7) = probability of choosing 3 marbles of different colour, in  a specific order. 

6*(2*3*4)/(9*8*7) = 2/7

 

I hopet his helped. :))

=^._.^=

 Apr 12, 2021

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