Lead time for cakes is 2 days with daily demand of 4 cakes and a safety stock of 1/2 day. Each container (kanban) holds 2 cakes. What is the correct number of kanbans?
A) 4
B) 1
C) 5
D) 10
E) 25

Question

Quizplus · Accepted Answer

First, calculate the total demand during lead time: 
2 days lead time x 4 cakes daily demand = 8 cakes 
Next, calculate the total demand during lead time plus safety stock: 
8 cakes lead time demand + 0.5 days safety stock x 4 cakes daily demand = 10 cakes 
Finally, divide the total demand by the container (kanban) size: 
10 cakes total demand / 2 cakes per kanban = 5 kanbans, rounded up to the nearest whole number. Thus, the correct number of kanbans is 5.

Lead Time for Cakes Is 2 Days with Daily Demand