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# 6 persons seat themselves at round table. What is the

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Manager
Joined: 27 Jul 2003
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6 persons seat themselves at round table. What is the [#permalink]  09 Oct 2003, 20:41
6 persons seat themselves at round table. What is the probability that 2 given persons are adjacent?
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Re: Probability#14 [#permalink]  09 Oct 2003, 23:48
araspai wrote:
6 persons seat themselves at round table. What is the probability that 2 given persons are adjacent?

If two persons are adjacent, # of ways ... 4! * 2

Total ways = 5!

prob = 4! *2 /5!

thanks
praetorian

Last edited by Praetorian on 09 Oct 2003, 23:50, edited 1 time in total.
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agree
total combinations = 5!

P=2!*4!/5!=2/5

Last edited by stolyar on 15 Oct 2003, 22:02, edited 1 time in total.
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# 6 persons seat themselves at round table. What is the

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