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Mike and four friends go to a Knicks game. How many ways can they sit together so that Mike always sits between two friends?
6 24 48 72 120
Please show all workings.
All possible ways 5!=120
The cases when Mike is not between two of his friends
Mike __ __ __ __ 4!=24
__ __ __ __ Mike 4!=24
Hence The cases when Mike is sitting between two friends is 120-24-24=72
My vote for D