The ratio of the length and the width of a rectangle is 4 : 3 and the area of the rectangle is 4800 sq cm. What is the ratio of the width and the area of the rectangle?  Choose the correct choice from the following:
A) 1:72  B) 1:76  C) 1:80  D) 1:84  E) 1:88
Let the length and the width be 4x and 3x respectively.   Area = (4x)(3x) = 4800   12x^2 = 4800   x^2 = 400   x = 20   The ratio of the width and the area is 3x : 12x^2 = 1 : 4x = 1 : 80   The answer is 1:80.
<result>C</result>
The ratio of the length and the width of a rectangle is 4 : 3 and the area of the rectangle is 4800 sq cm. What is the ratio of the width and the area of the rectangle?