A sales operation has two steps. The initial contact step occurs first and has a capacity of 10 customers per hour but a yield of 70%. The closing step follows initial contact and has a capacity of 12 customers per hour but a yield of 64%.

What is the capacity of customers (in customers per hour)?

A manufacturing process consists of three processes. Step 1 requires 2 minutes per unit, step 2 requires 5 minutes per unit and step 3 requires 4 minutes per unit. 30% of units that complete the third step require rework, which means those units must start the process over at step 2 (processing times are the same for units being reworked) and rework is always successful. Demand at the shop is 0.4 units per minute.

What is the capacity of the shop (in units per units per minute)?