4 men and 4 women are to be seated at a round table for dinner. If the men and women take alternate seats, how many arrangements are possible?
4 x 3 x 2 x 1 x 4 x 3 x 2 x 1 = 576 ways
The arrangement for men is 4 x 3 x 2 x 1 and the arrangement for women is also 4 x 3 x 2 x 1.
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Hi,
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http://www.platinumgmat.com/gmat_study_guide/combinatorics
At a round table for 8 person (4 men / 4 women), should the answer by 4!3! which is 144 ways?
Why 3! ???
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