Problem

Having to face an unexpected rise in sales of its two ice creams "Megacone" and "Microcup", the BestGelato Company is forced to resort to overtime work, which is not well accepted by its employees.

The production of the two ice creams requires different quantities of the same three basic components.

Ice-cream	Profit	Production Time	Quantity Component 1	Quantity Component 2	Quantity Component 3
Megacone	1	3	2	1	1
Microcup	3	2	1	1	5

The quantities of the three components in stock are respectively 32, 20 and 72 units.

1. How can the sales manager identify feasible solutions?
2. How can the sales manager choose efficient solutions, i.e., those that represent the best compromise between profit and overtime? Use the constraint method.