Permutation and CombinationMedium

Question

The number of ways in which we can arrange n ladies & n gentlemen at a round table so that 2 ladies or 2 gentlemen may not sit next to one another is -

Options

A.(n - 1)! (n - 2) !
B.(n)! (n - !)!
C.(n + 1)! (n) !
D.none of these

Solution

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