The height of a cone is 30 {cm}. A small cone is cut off at the top by a plane parallel to its base. If its volume is \frac{1}{27} of the volume of the given cone, then what is the height of the frustum of the cone?

UPSC CDS 2 2022 Math Paper

Question : 11 of 100

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The height of a cone is 30cm. A small cone is cut off at the top by a plane parallel to its base. If its volume is ‌

of the volume of the given cone, then what is the height of the frustum of the cone?

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