Demand
160
15
16
18
17
14
0
0
0
0
0
15
15
15
16
16
0
0
0
0
0
10
10
0
Capacit
y
Regular
150
Overtime
10
10
10
Cost Per Unit
Regular time
$50
Overtime
75
Subcontract
80
Inventory, per period
4
Subcontracting can handle a maximum of 10 units per month. Beginning inventory is zero.
Develop a plan that minimizes total cost. No back orders are allowed. (Negative amounts