Lady Bug Machineries Uses a Lean Production Assembly Line to Make

Multiple Choice

Lady Bug Machineries uses a lean production assembly line to make its generators. In one assembly area, the demand is 200 parts per 8-hour day. It uses a container that holds 10 parts. It typically takes about 5 hours to round-trip a container from one work center to the next and back again. They also desire to hold a 20% safety stock of this part in the system.
-If the container size were 15 and there were 10 containers, what would be the new required round-trip time, all else being constant?

A) 4 hours
B) 5 hours
C) 6 hours
D) 7 hours
E) 8 hours