In Mark David’s Body shop, there are five cars to be worked on. Each car has to go through two phases of work. The processing times in hours are indicated below. Mark wants to minimize the waiting times and the total time consumed in repairing the five automobiles. There is only one processing worker/machine combination for each phase.

What processing order of cars would you recommend for Mark to achieve his objective?

How long will take to complete all five?

How long would the equipment be “idle” in each phase?

Car/phase	Metal Work and Part replacement	Sand, mask, Paint work
Focus	17	10
Prius	18	9
Volt	13	8
Accord	15	11
Armada	16	3