Question
The ratio of the area of Rectangle S to that of Rectangle T to that of Rectangle U is 8 : 5 : 3. 316 of Rectangle S and 16 of Rectangle U are shaded. The shaded area is 24 cm2. Find the total unshaded area of the figure.
4 m

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The ratio of the area of Rectangle S to that of Rectangle T to that of Rectangle U is 8 : 5 : 3. 316 of Rectangle S and 16 of Rectangle U are shaded. The shaded area is 24 cm2. Find the total unshaded area of the figure.