Question
The ratio of the area of Rectangle G to that of Rectangle H to that of Rectangle J is 8 : 5 : 2. 316 of Rectangle G and 14 of Rectangle J are shaded. The shaded area is 100 cm2. Find the total unshaded area of the figure.
4 m

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The ratio of the area of Rectangle G to that of Rectangle H to that of Rectangle J is 8 : 5 : 2. 316 of Rectangle G and 14 of Rectangle J are shaded. The shaded area is 100 cm2. Find the total unshaded area of the figure.