SOLUTION: A shipment of 10 cell phones contains three defective phones. In how many ways can a cell phone company purchase four of these phones and recieve exactly two good phones?

SOLUTION: A shipment of 10 cell phones contains three defective phones. In how many ways can a cell phone company purchase four of these phones and recieve exactly two good phones?

Algebra.Com

Question 831651: A shipment of 10 cell phones contains three defective phones. In how many ways can a cell phone company purchase four of these phones and recieve exactly two good phones?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
(7C2)(3C2)
=21*3
=63 ways
.
Ed
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