Because it needs to produce 1,000 trucks, one constraint is
At least 400 trucks need to be made in the 3rd factory, so
Subject to work hours, we have:
Subject to raw materials, we have:
However, I am unsure about whether the previous two constraints are correct or not. They would be if the integers that you provided me with were in units of work hours per truck made and raw materials per truck made. If it is the other way around, you need to flip the numbers around.
Don't forget to implement:
- this is NOT a trivial constraint because if you solve it with linear programming software, it could give you negative production.