[seema]

• Next we need to tell Excel that we must have a minimum of four small cars.
• Click on the Add ****on.
• In the Cell Reference text box either enter the reference $C$4
  OR use the mouse to click on the cell C4 and the cell reference will be entered automatically.
• Select >= from the center part of the dialog box.
• In the Constraint box, enter the value 4.The dialog box will be as illustrated below.
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• Next we need to tell Excel that we must have a minimum of three medium sized cars.
• Click on the Add ****on.
• In the Cell Reference text box either enter the reference $C$5
  OR use the mouse to click on the cell C5 and the cell reference will be entered automatically.
• Select >= from the center part of the dialog box.
• In the Constraint box, enter the value 3. The dialog will be as illustrated below.
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