1) Job Flow: In Ford's River Rouge plant, 2500 shiny new vehicles leave the assembly line every day (assume they have three shifts, each shift is 8 hours long; so the factory is running 24 hours a day). The flow time of every vehicle in the assembly line is 1.5 hours. What was the average work-in-process inventory (number of cars) at the River Rouge plant?

2) Material Flow: Wendy's processes an average of 5,000 lb. of hamburgers per week. The typical inventory of raw meat is 2,500 lb. (a) What is the average hamburger's flow time (in weeks) at Wendy's?

(b) What is Wendy's turnover ratio (in number of turns per week) of hamburgers?

3) Employee Flow: The total number of employees in a certain company remains constant. Due to turnover, on average, the company hires 150 men and 200 women each year. If a woman stays with the company 50% longer than a man, what proportion of total employees are women?