A process requires 6 tasks, A, B, C, D, E and F, that must be performed in that order. Currently there are 3 employees that are equally skilled at each task. Employee 1 is assigned tasks A and B, employee 2 is assigned tasks C and D and employee 3 is assigned tasks E and F. The task times (all in seconds) are given in the process diagram below. For example, task A requires 90 seconds. Note this is a worker-paced line. Suppose now the 3 employees can be assigned to any task, but employees must be assigned to consecutive tasks (e.g., an employee cannot be assigned tasks B and D). What would be the processes maximum capacity (units per hour)?

• A. 50 units/hour
• B. 40 units/hour
• C. 36 units/hour
• D. 45 units/hour

A 4 4C4D4E 4F -F 90 40 60 20 50 10