An Integrated Electronic-Chip Manufacturer Has a Demand for a Specific

Multiple Choice

An integrated electronic-chip manufacturer has a demand for a specific component of 800 parts per 8-hour day. The manufacturer wants to design a lean system using containers. The containers the manufacturer used for this component held 20 parts. It takes about 4 hours to round-trip a container from one work center to the next and back again. The manufacturer also wants to hold 10% of safety stock of this part in its system.
-If the required safety stock was changed to zero, how many containers should the lean system be using, all else being constant?

A) 5
B) 10
C) 20
D) 22
E) 30