Globex Investment Capital Corporation owns six companies that have the following estimated returns (in millions of dollars) if sold in one of the next 3 years:

To generate operating funds, the company must sell at least $20 million worth of assets in year 1, $25 million in year 2, and $35 million in year 3. Globex wants to develop a plan for selling these companies during the next 3 years to maximize return.

Formulate an integer programming model for this problem and solve it by using the computer

Find constraints, decision variables and objective function

Company			Year Sold (estimated returns, $1,000,000s)
1		2		3
1	$14		$18		$23
2	9		11		15
3	18		23		27
4	16		21		25
5	12		16		22
6	21		23		28