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A tea party is arranged for 2m people al...

A tea party is arranged for 2m people along two sides of a long table with m chairs on each side, r men wish to sit on one particular side and s on the other. IN how many ways can they be seates ? `[r,s,lem]`

Text Solution

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The correct Answer is:
`2(.^(m)P_(r))(.^(m)P_(s))(.^(2m-4-s)P_(2m-r-s))`
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