This figure is not drawn to scale. It is made up of 3 squares. The ratio of the area of the smallest square to the largest square is 1 : 3 while the shaded area is
45 of the unshaded area. What is the ratio of the area of the largest square to the unshaded area ?
Smallest square |
Largest Square |
Shaded area |
Unshaded area |
3x3 |
9x1 |
1x3 |
3x3 |
4x1 |
5x1 |
3 u |
9 u |
4 u |
5 u |
The total area is repeated. Make the total area the same. LCM of 3 and 9 is 9.
Area of largest square : Unshaded area
9 : 5
Answer(s): 9 : 5