Plainwell Polymers is going to producing the main dashboard structure for a new car design. The dashboard will be produced in three colors with expected daily demand as follows:
Black: 535 units/day
Grey: 155 units/day
Tan: 190 units/day
The injection-molding machine can produce a total of 1,085 parts per day running 24 hours per day.
It costs Plainwell $1,340 to set up each color for producition and the daily holding cost for each part is $0.38. What is the length of the lowest cost cyclic schedule (ignoring setup time constraints) in days?