Question

A child's sandbox has a length of 5 metres and a width of 4 metres. A uniform sidewalk is to be built around the sandbox with patio stones. The area of the sandbox is twice as large as the sidewalk. How wide is the sidewalk?A child's sandbox has a length of 5 metres and a width of 4 metres. A uniform sidewalk is to be built around the sandbox with patio stones. The area of the sandbox is twice as large as the sidewalk. How wide is the sidewalk?

Answer 1

5 meters. The area of the sidewalk has to be 10 meters and has to contain the 20 meter sandbox. The total area is thirty meters, so the length and width of the sidewalk is 6x5