Question

Tom decides to paint one wall in his room green. Use the dimensions below to calculate the area of the this wall.

Answer 1

Option C:

Area of the wall $=94\frac{15}{16}$ square feet

Solution:

Length of the wall = $12 \frac{1}{4}$ feet

Width of the wall = $7 \frac{3}{4}$ feet

Area of the wall = length × width

                          $=12 \frac{1}{4}\times 7 \frac{3}{4}$  

Convert mixed fraction into improper fraction.

                          $=\frac{12 \times 4+1}{4}\times \frac{7\times 4+3}{4}$

                          $=\frac{49}{4}\times \frac{31}{4}$

                          $=\frac{1519}{16}$

Convert improper fraction into mixed fraction.

                          $=94\frac{15}{16}$

Area of the wall $=94\frac{15}{16}$ square feet

Option C is the correct answer.