One of the hasbro's subsidiary factories that makes transformer toys manufactures the optimus prime robot. the factory is looking to sell 45000 units of he optimus prime robot next month and has one week to produce them before sending them to the packing facility The assembly consist of the following operation Stamping average time 5 minutes Grinding average time 4 minutes Polishing average time 10 minutes And paint average time 8 minutes There is 100 workers doing stamping, 80 doing grinding, 180 workers polishing and 160 workers doing painting There is enough inventory space for inventory between operations so that they can work fairly independently 1. Determine the bottleneck operation