Answer Questions 17-20 using the Scenario in the first picture :

SCENARIO: The process of a firm is as follows. Flow units enter at the rate of wait in line for Step A and then do Step A. Then about go to wait in line for step B. 25% 35% 65% exit. The remaining go to Step C When flow units finish Step B. About 35% of the units leaving Step A go to Step C. So, Step C has two flows into it (from B and from A) The remaining 40% units leaving step A go to Step D. After Step C. 80% of the flow units that went through Step C exit. The rest go to Step D. All flow units going to Step D go to Step E. So there are 2 flows into Step D (Step A, Step C), and 100% of units leaving Step F exit 100% of units going to Step E go to Step F. On average 5 On average 3 10. 3.5 minutes to do Step A. minutes to do Step B 2 minutes to do Step C On average On average On average units are waiting for Step A and it takes units are waiting for Step B and it takes units are waiting for Step C and it takes units are waiting for Step D and it takes units are waiting for Step E and it takes units are waiting for Step F and it takes 6 minutes to do Step D 7 minutes to do Step E On average 2 minutes to do Step F 3 2 1.25 0.25 units per minute. All units 17 18 19 20 6 6 6 6 What is the total number of flow units in this process? I What is the average flow time of a job exiting this system? Taverage What is the average flow time of a job exiting after doing step B? Taverage What is the average flow time of a job exiting after doing step B? Taverage