Suppose the problem is solved using the Solver, and the Solver Results Dialogue shows:

Solver Results

Solver could not find a feasible solution.

Keep Solver Solution

Reports

Feasibility,

Feasibility$-$Bounds

Restore Original Values

Return to Solver Parameters Dialo$8$

Outline Reports

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Save Scenario..

Solver could not find a feasible solution.

Solver can not find a point for which all constraints are satisfied.

Given this result, which of the following events may have occurred?

There might be a problem with the way the problem was entered into the Solver.

The solution found for this problem is infinite.

Exactly two answers are correct.

There might be a problem with one of the functions that was entered in the Excel workbook.

The optimal solution was found.