SOLUTION: If a customer purchases a new stereo system during the spring sale, he may choose any 6 cd's from 20 classical and 30 jazz collections. In how many ways can the customer choose 3 o

SOLUTION: If a customer purchases a new stereo system during the spring sale, he may choose any 6 cd's from 20 classical and 30 jazz collections. In how many ways can the customer choose 3 o

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Question 115155: If a customer purchases a new stereo system during the spring sale, he may choose any 6 cd's from 20 classical and 30 jazz collections. In how many ways can the customer choose 3 of each?
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
20*19*18+30*29*28=6840+24360=31,200 CHOICES FOR 6 cd's OF 3 CLASSICAL + 3 JAZZ.
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