A process requires 5 tasks, A, B, C, D, and E, that must be performed in that order. Currently there are 3 employees. Employee 1 is assigned tasks A and B, employee 2 is assigned task C and employee 3 is assigned tasks D and E. The task times (all in seconds) are given in the process diagram below. For example, task A requires 50 seconds.

Question: why does the other 9 units only take additional 80 seconds each?

6. A process requires 5 tasks, A, B, C, D, and E, that must be performed in that order. Currently there are 3 employees. Employee 1 is assigned tasks A and B, employee 2 is assigned task C and employee 3 is assigned tasks D and E. The task times (all in seconds) are given in the process diagram below. For example, task A requires 50 seconds. A B D E 50 sec 30 sec 60 sec 30 sec 40 sec Suppose the system started without any work in process inventory (i.e., an empty system). How long would this process take to produce 10 units (in seconds)? A) 660 seconds B) 800 seconds C) 930 seconds D) 1210 seconds E) 2100 seconds Answer: (C) The first unit takes 210 seconds. The next 9 units take additional 9 x 80 seconds = 720 econds to finish. The total time is 210 + 720 = 930 seconds