Process Flow Dugram for Making a Shirt

Consider the following process flow diagram for making a shirt, All steps $($A$,$ B$,$ C$,$ D$,$ and E$)$ are necessary to create each finished unit $($shirt$).$ Each step employs a single worker. Exact task times, in minutes$/$unit$,$ are shown at each step. For example, it takes exactly $4$ minutes to stitch the front and back of the shirt.

Pupereticet

A

$5$ minulinat

Prepare buck:

B

$10$ mins$/$endRefer to the Process Flow Diagram for Making a Shirt. What is the minimum throughput time, that is$,$ the fastest a rush order for one unit can go through the process?