Question
The ratio of the area of Rectangle H to that of Rectangle J to that of Rectangle K is 7 : 5 : 2. 314 of Rectangle H and 14 of Rectangle K are shaded. The shaded area is 56 cm2. Find the total unshaded area of the figure.
4 m

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The ratio of the area of Rectangle H to that of Rectangle J to that of Rectangle K is 7 : 5 : 2. 314 of Rectangle H and 14 of Rectangle K are shaded. The shaded area is 56 cm2. Find the total unshaded area of the figure.