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January 24th, 2017, 11:30 PM  #1 
Senior Member Joined: Jul 2011 Posts: 405 Thanks: 16  arrangement of persons in a circle such that 3 are not consecutive
Number of ways of arranging $n$ persons in a circle such that exactly three persons are not consecutive,is 
January 24th, 2017, 11:43 PM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,382 Thanks: 1281 
what does 3 persons are not consecutive mean?

January 25th, 2017, 12:35 AM  #3 
Senior Member Joined: Jul 2011 Posts: 405 Thanks: 16  
January 25th, 2017, 07:41 AM  #4 
Senior Member Joined: May 2016 From: USA Posts: 1,310 Thanks: 550 
The issue is with the word "consecutive." What does it mean?


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arrangement, circle, consecutive, persons 
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