You are an interior designer and you want to add wallpaper t

You are an interior designer and you want to add wallpaper to one wall section of a client\'s living room. The wall section is 12 1/4 feet long and 3 1/4 feet tall. The wallpaper comes in rolls of 150 square feet. How much wallpaper do you need to cover the wall section? 28 3/4 square feet 36 3/16 square feet 36 3/4 square feet 40 1/8 square feet 40 5/8 square feet

Solution

the area of the wall section will be = length * height

length = 12 1/2 feet = [(12*2) + 1)]/2 = 25/2 feet

height = 3 1/4 feet = [(3*4) + 1]/4 = 13/4 feet

=> the area of the wall will be = 25/2 * 13/4 = 325/8 = 40.625 square feet

now we will represent 325/8 in the mixed fraction form

=> 325/8 = 40 5/8 square feet

hence 40 5/8 square feet of wallpaper will be required

Option E is correct.