Question

A classroom wall has 3 windows each measuring 4 ft x 3 ft. the wall is 24 ft wide and 10 ft tall. what percent of the wall is windows?

Answer 1

find the surfaces
wall 240feet ^2
windows 36 feet ^2
36:240=0.15 so 15%

Answer 2

Windows are 15% of the wall.

Explanation:

The given measurements of the wall = 24 ft × 10 ft

and the measurements of 3 windows are 4 ft × 3 ft each.

Now area of the wall = 24×10 = 240 ft²

Area of the windows = 3×4×3 = 36 ft²

Now the percentage of the windows as compared to the wall will be

= (area of the windows/are of the wall)×100

= (36/240)×100 = 15%

Windows are 15% of the wall.