Table J.12 the Feast

Multiple Choice

Table J.12 The Feast
Janice prepares a medley of pastas for her brother Tony. Each of the pastas must first be rolled and then formed (or in some cases stuffed) before cooking. The required time on each machine in minutes is indicated in the table.

-Janice decides to minimize the average flow time of the pastas using Johnson's rule. How much idle time does the Roller/Former machine experience?

A) none
B) 8 minutes
C) 12 minutes
D) 16 minutes