Dinner Time

You invite 10 friends over to dine with you at a local restaurant. You sit at a circular table; how many ways could you arrange them around the table (not counting yourself)

45,802 3,628,800 3,628 3,346,821

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2 solutions

Anthony Bolda
Dec 31, 2017

The first person has 10 choices where to be placed by you, the 2nd has 9 choices, the 3rd person has 8 choices ect. It is 10!

Uttam Manher
Jul 9, 2018

There are 10 chairs and 10 person but position of one person (you) is fixed, 9 person can sit in 9 chairs in factorial 9 ways. :)

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