There are 5 black pens,3 blue pens,and 4 green pens in a box.In how many ways can 2 black pens,2 blue pens and 2 green pens be chosen?

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There are 5 black pens,3 blue pens,and 4 green pens in a box.In how many ways can 2 black pens,2 blue pens and 2 green pens be chosen?

 

Answer:

14/45

Step-by-step explanation:

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