SOLUTION: Ricky and his 6 sons sat a circular table. How many seating arrangements were possible?? Please solve thanks!!

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Question 1157794: Ricky and his 6 sons sat a circular table. How many seating arrangements were possible??
Please solve thanks!!

Found 2 solutions by ikleyn, MathLover1:
Answer by ikleyn(52756) About Me  (Show Source):
You can put this solution on YOUR website!
.

In all, there are 1 + 6 = 7 persons around the circular table.


For 7 persons around a circular table, there are (7-1)! = 6! = 6*5*4*3*2*1 = 720 circular permutations.       ANSWER 


Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

there are 1%2B6+=+7 people
Let's say Ricky is placed at the top of the circle. Ricky is always there, so we worry only about how the 6 sons are seated.
There would be
%28n-1%29%21+=+%287-1%29%21+=+6%21+=+6%2A5%2A4%2A3%2A2%2A1+=+720 ways to arrange the 6 sons left over