Answer:
= 7.77
≅ 8 kanban cards
Step-by-step explanation:
K =
K = Number of kanban card sets
D = Average number of units demanded over some time period
L = Lead time to replenish an order
S = Safety stock expressed as a percentage of demand
C = Container size
where,
D = If the average number of units demanded is 2400 and the time period is 2 hours, then that's 1200 in an hour, 1200 in 60 minutes, 20 in one minute.
L = 40
S = 0.1
C = 120
K = 20 * 40 (1 + 0.1) / 120
K = 7.77
approximately
≅ 8 kanban cards