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Question

Find the no. of ways in which 6 men and 5 women can sit at a round table so that no two women sit together?

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Solution

Since no conditions for men,
6 men can be arranged in 5! ways in a round table.
In between each man a woman is to be placed since no two women can be together.
There are 6 gaps between two men and 5 women are to be placed.
This can be done in 6P5 ways.
the required number of arrangements =6P5.5!=6!.5!=86,400ways

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