SOLUTION: At a horse show, ribbons are given for first, second,third, and fourth places. There are 20 horses in the show. How many different arrangements of four winning horses are possible?

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Question 750426: At a horse show, ribbons are given for first, second,third, and fourth places. There are 20 horses in the show. How many different arrangements of four winning horses are possible?

Answer by checkley79(3341)   (Show Source): You can put this solution on YOUR website!
20p4
20!/(20-4)!
20!/16!
20*19*18*17=116,280

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