Precision Painters, Inc., has five house painting jobs in one neighborhood. The houses differ in size, state of repair, and painting requirements, but each house must be prepped (cleaned, old paint chipped off, primed) first, then painted. In what sequence should the houses be worked on in order to finish all five houses as soon as possible? Chart out your sequences on Gantt charts and calculate the makespan. house A prep: 4 days paint 2 days, house B prep; 3 days paint 6 days. House c , prep 6 days paint 4 days. hhouse d , prep 5 days paint 6 days. house e prep 1 day, paint 4 days