How many ways can 10 friends be arranged around a circular dinner table?  Choose the correct answer:
A) 6! B) 7! C) 8! D) 9! E) 10!
The number of ways to order 10 people is 10!   However, around a circular table, each pattern would be repeated 10 times.   So the number of ways to seat 10 friends around a circular table is 9!   The answer is 9!.
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How many ways can 10 friends be arranged around a circular dinner table?