If seven women and seven men are to be seated around a circular table such that there is a man on either…

If seven women and seven men are to be seated around a circular table such that there is a man on either side of every woman, then the number of seating arrangements is
  1. $6 ! 7 !$
  2. $(6 !)^2$
  3. $(7 !)^2$
  4. 7 !

Solution

7 women can be arranged around a circular table in 6 ! ways. Among these 7 men can sit in 7 ! ways. Hence, number of seating arrangement $=7 ! \times 6 !$

Asked in: JEE Main 2012 (26 May Online)

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