An auto company manufactures cars and trucks. each vehicle must be processed in the paint shop and body assembly shop. the paint shop could paint 40 trucks per day or 60 cars per day (if it spent half the day on painting trucks and half the day on painting cars, then 20 trucks and 30 cars will be painted, the body assembly shop could process 50 trucks per day or 50 cars per day. each truck contributes $300 to profit whereas each car contributes $200 to profit.