SOLUTION: you are transferring to a new house. You have a collection of books but you can not take them all with you. In how many ways can you select 7 books out of 10,and then arrange these

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Question 1103464: you are transferring to a new house. You have a collection of books but you can not take them all with you. In how many ways can you select 7 books out of 10,and then arrange these books on a shelf if there is space enough for only 5 books?
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!
(10 books CHOOSE 7)(7 books POSITION 5) = 

(10C7)(7P5) = (120)(2520) = 302400

Edwin
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