I need to solve this problem:
How many ways are there,$2n$ ball $A$ and $2n$ ball $B$ and $2n$ ball $C$ distribute to two equal group so that every group has 3n member?
I need to solve this problem:
How many ways are there,$2n$ ball $A$ and $2n$ ball $B$ and $2n$ ball $C$ distribute to two equal group so that every group has 3n member?