Current Attempt in Progress

A workstation's output is $200$ bottles of wine per hour. It takes $45$ minutes to receive a

withdrawal kanban of corks from the previous workstation. The withdrawal kanban is

attached to a container holding $30$ corks. The process uses a safety factor of $20$ percent. What

is the number of withdrawal kanbans needed to support the bottling process?

$3$

$4$

$5$

$6$