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JEE MATHEMATICS MCQ: PERMUTATIONS

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The number of ways in which 10 person can sit around a table so that they do not have same neighbor (all at once) in any two arrangements

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Correct option: B

\frac{1}{2}9!

Option B (

\frac{{1}}{{2}}9!

) is correct because it accounts for the circular arrangement and the fact that clockwise and anticlockwise arrangements are considered the same.

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