A tailor trims 11 feet from opposite edges of a square piece of cloth, and 7 feet from the other two edges. If 84 square feet of cloth remain, what was the length of a side of the original piece of cloth?  Choices
A) 26  B) 27  C) 28  D) 29  E) 30
Let the original side of the square be x.   (x-22)*(x-14) = 84 = 6*14   x = 28   The answer is 28.
<result>C</result>
A tailor trims 11 feet from opposite edges of a square piece of cloth, and 7 feet from the other two edges. If 84 square feet of cloth remain, what was the length of a side of the original piece of cloth?