No one answered. At first, four people drink three cups, and everyone drinks the same amount, that is, the total number of cups is a multiple of four.

But only two or four people can drink it, that is, 3+2x+4y=4z(xyz is a positive integer).

That is 3+2x=4(z-y)

X can only be established as a decimal, so there is no solution.

It is possible to drink half a cup or 1/3 cups. ...