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Question

If 'm' men and 'n' women are to be seated in a row so that no two women sit together and m > n, then the number of ways in which they can be seated is

A
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C
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D
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Solution

The correct option is D
Given, no two women sit together i.e. every woman sits between two men.

The number of spaces available between m men = m+1

The number of ways in which n women can be arranged in m+1 places ism+1Pn

The number of ways in which they can be seated = m!×m+1Pn

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