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8 people are to form 2 queues of 4. in how many ways can this be done if jim will only stand in the left hand queue
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err i think it will be \[\left(\begin{matrix}7 \\ 4\end{matrix}\right)\]
what does that mean?
7C4 it means 7!/4!3! it is numberof ways of picking 4 people out of 7
your answer is incorrect
the answer is 20160
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That impossible 20140 is more that 8C4
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