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There is a square table and 2 persons are sitting on each side of it so there are 8 persons in total ... how many total number of permutation is possible?

Does circular permutation rules applies here?

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    Why wouldn't it?2011-03-02
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    @ Jay Kopper:Thanks :-)2011-03-02
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    Well, they *sort* of do: rotation by 1 person results in a different seating arrangement, so only rotations by an even displacement corresponds to the "same" seating.2011-03-02

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