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question b pleae

 Mar 28, 2020
 #1
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To get two of the same color, you need either two red or two green.

To get two red:      (3/10) x (4/9)  =  r

To get two green:  (7/10) x (5/9)  =  g

To get either two red or two green, add these results togethr:  r + g

 Mar 28, 2020

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