My Math Forum arrangement of persons in a circle such that 3 are not consecutive

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 January 25th, 2017, 12:30 AM #1 Senior Member   Joined: Jul 2011 Posts: 402 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 25th, 2017, 12:43 AM #2 Senior Member     Joined: Sep 2015 From: USA Posts: 2,308 Thanks: 1222 what does 3 persons are not consecutive mean?
January 25th, 2017, 01:35 AM   #3
Senior Member

Joined: Jul 2011

Posts: 402
Thanks: 16

Sorry romsek actually it is
Quote:
 Originally Posted by panky Number of ways of arranging $4$ persons out of total $n$ persons in a circle such that exactly three persons are not consecutive,is

 January 25th, 2017, 08:41 AM #4 Senior Member   Joined: May 2016 From: USA Posts: 1,306 Thanks: 548 The issue is with the word "consecutive." What does it mean?

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