Markland First National Bank of Rolla utilizes Kanban techniques in its check processing facility. The fol-lowing information is known about the process. Each Kanban container can hold 50 checks and spends 24 minutes a day in processing and 2 hours a day in materials handling and waiting. Finally, the facility operates 24 hours per day and utilizes a policy variable for unforeseen contingencies of 0.25.

If there are 23 kanban containers in use the current daily demand of the check processing facility is units