Answer:
The number of Kanbans circulating between this workstation and the previous workstation is 6 Containers
Explanation:
Given demand = 200 unit / hour
45 minutes between one workstation to another
Container size = 30
Safety factor = 20% = 0.2
Demand during lead time of 45 minutes = 45minute / 60minute * 200 units = 150 units
Number of Kanbans = Demand during lead time ( 1 + Safety factor) / Container size
= 150 (1 + 0.20) / 30
= 150 (1.20) / 30
= 180 / 30
= 6 Containers