Question
The ratio of the area of Rectangle P to that of Rectangle Q to that of Rectangle R is 7 : 4 : 2. 314 of Rectangle P and 14 of Rectangle R are shaded. The shaded area is 44 m2. Find the total unshaded area of the figure.
4 m

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The ratio of the area of Rectangle P to that of Rectangle Q to that of Rectangle R is 7 : 4 : 2. 314 of Rectangle P and 14 of Rectangle R are shaded. The shaded area is 44 m2. Find the total unshaded area of the figure.