Consider the playkool storage studio below. We wish to design an assembly line to assemble several units. The assembly takes and their standard times (in second) are listed below.

The parts are to be assembled according to the following precedence network:

a. Calculate the cycle time if 75 units per hour are to be assembled.
b. What is the minimum number of workstations?
c. Using your answer to part a, perform assembly-line balancing using “Assign the task with the longer time” heuristic rule, breaking any ties using “Assign the task with the most followers” rule. If there is still a tie, break it randomly.