Posters squares

You re in charge of printing up campaign posters for your favorite candidate. The person running for office has a lot to say and wants to devote 120 square inches of the poster to information about her position on the issues. You get to create the most economical size poster (use the least amount of print). 

The Problem What are the dimensions of the poster that uses the least amount of material if you have to include 120 square inches of print, 2-inch borders on the sides, and 3-inch borders on the top and bottom (To make it more reasonable to solve, the measures all have to be whole numbers.)... 

You re to create a poster with a certain number of square inches. The white border around the printed material is to be 2 inches on each side and 3 inches across the top and bottom. Now you have to determine the amount of material left for pictures and words. 

The Problem You are to create a poster with a total area of 300 square inches. In the center of the poster you ll put the printed material in a rectangular box with 2-inch borders on either side. You ll also put 3-inch borders on the top and bottom. The material in the borders is included in the total area of 300 square inches. If the width of the poster is to be X the length, then what are the dimensions of the rectangular area containing the printed material (Refer to Figure 19-9 to help you picture the situation.)... 

Add 6 to get the outside length of 20 inches. The width is to be K of the length, which makes it 15 inches. The inside width (for the printed material) is 15 inches less the border of 4 inches or 11 inches. To recap The whole poster is to be 20 by 15 inches, giving you 300 square inches. The inside rectangle is 14 by 11 inches, giving you 154 square inches to put all the print and pictures. 

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