A manager wants to assign tasks to workstations as efficiently as possible and achieve an hourly output

Question:

A manager wants to assign tasks to workstations as efficiently as possible and achieve an hourly output of four units. The department uses a working time of 56 minutes per hour. Assign the tasks shown in the accompanying precedence diagram (times are in minutes) to workstations using the following rules:

a. In order of most following tasks. Tiebreaker: greatest positional weight.

b. In order of greatest positional weight. Tiebreaker: most following tasks.

c. What is the efficiency?