Please help explain how to find 1 through 4. Thank you!

1. What is the implied utilization of each of the five steps in this process?

2. From these utilizations, is this a demand-limited or process-limited system? How can you tell?

3. What are the actual and maximum flow rates of the three sandwich types? Explain the differences?

4. If you were allowed due to system upgrades that workers could assist workers to their left or right- but not cross over workstations- what would be your first step in allowing workers to share at a station? That is, which two stations would you combine to share first? Explain your rationale the expected effectiveness.

Sub City, a popular sandwich shop in Marshalltown, Iowa, offers 3 types of sandwiches:

Grilled vegetables, Grilled chicken, and Pastrami

Demand (in sandwiches per hour) is Grilled Vegetables - 25, Grilled Chicken - 15, and Pastrami - 10. There are up to five steps in the process of making sandwiches, listed below with processing times.

Step	Grilled Vegetables	Grilled Chicken	Pastrami
Cut bread	.75 minutes	.75 minutes	.75 minutes
Grill	1.4 minutes	1.4 minutes	____
Slice meat	____	____	3 minutes
Toast	2 minutes	2 minutes	2 minutes
Wrap	.5 minutes	.5 minutes	.5 minutes

Only 50 percent of customers want their sandwich toasted, no matter which sandwich is ordered.

Suppose Sub City employs 1 worker at each step, and they could not assist the other worker at a station next to them due to cleanliness reasons.