Resources: A$,$ B$,$ C $($one each$)$

Availability: $3,300$min.$/$week

Operating expense: $$12,\frac{000}{w}$

Process times for each task are shown in the diagram. Each machine is available $3,300$ minutes per week. There are no "Murphys"

$($major opportunities for the system to foul up$).$ Setup and transfer times are zero. Demand is constant.

Operating expenses $($including labor$)$ total a constant $$12,000$ per week. Raw materials are not included in weekly operating expenses.

a$.$ Which machine is the constraint in this plant?

Machine A

Machine B

Machine $C$

b$.$ Which product mix provides the highest gross profit? $($Hint: consider raw material cost but not operating expense$)$

c$.$ What is the maximum weekly net profit this plant can earn using the product mix from Part b$?($Hint: consider operating expense and

raw material cost$)$

Weekly net profit