Bikes electronics wants to establish an assembly line for producing a new product, the Little assistant. The tasks, tasks time and immediate predecessor for the tasks are as follows.

Task time (sec) immediate predecessor

A 12

B 15 A

C 8 A

D 5 B,C

E 20 D

The goal is to produce 180 LAs' per hour.

a. What is the cycle time?

b. What is the theoretical minimum for the number of workstations?

c. Can the theoretical minimum actually be reached.