Question

The area of a rectangle is 250 in squared. the ratio of the length to the width is 5 : 2. find the length and the width.

Answer 1

Area of a rectangle is length * width. So we find the factors of 250 that together have a ratio of 5:2. 

Your answer is 25 inches in length and 10 inches in width. Divide each dimension by 5, you get your ratio.