Question

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

Answer 1

err i think it will be \[\left(\begin{matrix}7 \\ 4\end{matrix}\right)\]

Answer 2

what does that mean?

Answer 3

7C4 it means 7!/4!3! it is numberof ways of picking 4 people out of 7

Answer 4

your answer is incorrect

Answer 5

the answer is 20160

Answer 6

That impossible 20140 is more that 8C4