This problem needs to establish a mathematical model, which is a simple linear problem. Express the unknown function, then establish the linear inequality group, and finally solve it with lingo or lindo.

Because this problem is simple (thinking), but it is still complicated to do, so I can only briefly talk about the idea of solving the problem. I don't care, I just hope I can help you.

You can ask me directly if you have any questions, QQ: 15890622 18.