Excel's Solver tool has been used in the spreadsheet below to solve a linear programming problem with a minimization objective function and all ≥ constraints. 
a.Give the original linear programming problem.
b.Give the complete optimal solution.
Definitions:
Total Rate Of Return
The overall return on an investment, including both capital gains and income, expressed as a percentage of the initial investment.
Capital Gain Yield
The increase in the price of an investment, calculated as the percentage difference between the current price and the purchase price.
Rate Of Total Return
A measure of the overall return on an investment, including both capital gains and income, expressed as a percentage of the initial investment.
Income Yield
The return on an investment expressed as a percentage of the investment’s cost.
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