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mahesh004
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6 person sit around a table. In how many ways can they sit 26 May 2006, 04:50
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6 person sit around a table. In how many ways can they sit so that no person has the same neighbors?



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SimaQ
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6 person sit around a table. In how many ways can they sit 26 May 2006, 06:13
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this one is a bit tricky... :)

Does the question asks for number of ways to sit so that no person has any two or one of the same neighbours?
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kandid
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6 person sit around a table. In how many ways can they sit 31 May 2006, 02:27
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Already discussed I guess:
Should be (n-1)!=5!
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tl372
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6 person sit around a table. In how many ways can they sit 31 May 2006, 09:50
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Can someone explain how you got to the answer? Or is this a straight formula you memorized?
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M8
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6 person sit around a table. In how many ways can they sit 31 May 2006, 10:36
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tl372
Can someone explain how you got to the answer? Or is this a straight formula you memorized?
Show more


This link can help you.

https://www.ilovemaths.com/3permcirc.htm
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tl372
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6 person sit around a table. In how many ways can they sit 31 May 2006, 10:54
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Great! Thanks M8.

I wonder how often people have seen circular permutations on the exam...
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ps_dahiya
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6 person sit around a table. In how many ways can they sit 31 May 2006, 12:39
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Its (n-1)!/2 i.e 60. But I calculated using another lengthy method.



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