Area
The perimeter of a rectangle is 2(length) +2 (width). Since we know the length is y, we need to find the width. The area of a rectangle is (length) x (width). So the fact that the area is 1,000 square yards gives the equation y(width) = 1,000. Solving for the width, we get width = 1,000/y. Therefore the perimeter is 2y+2(1,000/y)=2y+2,000/y.
Related MCQ Area
MOCK TEST SERIES