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For your practice.. I am posting the good ones.. 41. Seven

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For your practice.. I am posting the good ones.. 41. Seven [#permalink] New post 03 Jul 2006, 18:16
For your practice.. I am posting the good ones.. :)

41. Seven family members are seated around their circular dinner table. If only the only arrangements that are considered distinct are those where family members are seated in different locations relative to each other, then how many distinct arrangements around the table are possible?

(A) 7
(ß) 42
(C) 294
(D) 720
(E) 5040
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 [#permalink] New post 03 Jul 2006, 20:01
Not sure if I understood the question but it seems like a circular permutation question.
Total arrangements =(n-1)! = (7-1)! = 720
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 [#permalink] New post 03 Jul 2006, 20:32
Yes. This is a circular permutation.

Answer should be (7-1)! = 720
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 [#permalink] New post 04 Jul 2006, 00:25
Indeed this is a confusing question. does it ask to find arrangements in a circular arrangement or arrangement where the second arrangement wont have the same person seatign next to the same persons and on the same seat......

For circular arrangements no of ways = (n-1)! =6! = 720
  [#permalink] 04 Jul 2006, 00:25
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For your practice.. I am posting the good ones.. 41. Seven

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