Question
The ratio of the area of Rectangle Z to that of Rectangle A to that of Rectangle B is 8 : 5 : 3. 316 of Rectangle Z and 16 of Rectangle B are shaded. The shaded area is 20 cm2. Find the total unshaded area of the figure.
4 m

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The ratio of the area of Rectangle Z to that of Rectangle A to that of Rectangle B is 8 : 5 : 3. 316 of Rectangle Z and 16 of Rectangle B are shaded. The shaded area is 20 cm2. Find the total unshaded area of the figure.