Question

A house has 3 rectangular countertops. Each countertop is 4 and 3/8 by 2 and 2/5 feet. How many square feet of tile is needed to cover all the countertops?

A. 8 3/20

B. 10 1/2

C. 24 9/20

D. 31 1/2

Answer 1

31\frac{1}{2}ft^2

Explanation:

From the information given each of the three rectangular countertops has dimension 4\frac{3}{8} by 2\frac{2}{5} feet.

The area of a rectangular shapes is the product of the dimensions.

Each rectangular countertop has area;

4\frac{3}{8}\times 2\frac{2}{5}=\frac{35}{8}\times \frac{12}{5} =10\frac{1}{2}ft^2

Therefore the number of square feet tiles needed to cover all the countertops is D.