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 : 10 while the shaded area is
18 of the unshaded area. What is the ratio of area of the smallest square to the shaded area?
Smallest square |
Largest Square |
Shaded area |
Unshaded area |
10x9 |
9x10 |
1x9 |
10x9 |
1x10 |
8x10 |
9 u |
90 u |
10 u |
80 u |
The total area is repeated. Make the total area the same. LCM of 10 and 9 is 90.
Area of smallest Square : Shaded area
9 : 10
Answer(s): 9 : 10