Question
The figure, not drawn to scale, is made up of 3 circles. The ratio of the area of the smallest circle to the largest circle is 1 : 10 while the shaded area is 25 of the unshaded area. What is the ratio of the shaded area to the area of the smallest circle?
2 m

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The figure, not drawn to scale, is made up of 3 circles. The ratio of the area of the smallest circle to the largest circle is 1 : 10 while the shaded area is 25 of the unshaded area. What is the ratio of the shaded area to the area of the smallest circle?