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If no one shares an office, in how many ways can 3 people be assigned to 5 different offices? (Each person gets exactly one office).

 Mar 31, 2020
 #1
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 Mar 31, 2020
 #3
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Here's my (probably not correct) take on this problem. Choose 3 offices out of 5 to be the ones that are assigned to people. Now count how many ways there are to order that; that should be your answer.

 

Or, another way, first person has 5 choices. How many does the second have?

 Mar 31, 2020

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