Liversuch Industries Uses a Kanban System to Manage Production of the J-15

Multiple Choice

Liversuch Industries uses a kanban system to manage production of the J-15 subassembly. They have an hourly demand for 250 units and use containers that can hold 50 units each. It takes 90 minutes to fill and move a container of parts to the right place on the J-15 line that is currently rated at a 20% safety factor. How many production cards are needed?

A) 540
B) 100
C) 9
D) 1.5