Question

Riley and her three sisters each have their own bedroom, each in the shape of a rectangle. The sum of the perimeters of all 4 bedrooms is 200 feet. If the length of each bedroom is 13 feet, what is the width of each bedroom?

Answer 1

The width of each bedroom is 12 feet.

Explanation:

Each bedroom has 2 walls 13 feet long. That is a total of 8 times 13, which equals 104.

Subtract 104 from 200. That leaves 96 feet to be divided into the 8 widths.

96 ÷ 8 = 12.

12 feet is the width of each bedroom.