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A shopkeeper has one laddoo of radius...

A shopkeeper has one laddoo of radius 5cm. With the same material, how many laddoos of radius 2.5cm can be made.

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RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A SPHERE -All Questions
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  13. The diameter of a copper sphere is 18 cm. The sphere is melted and ...

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  14. A cylindrical jar of radius 6 cm contains oil. Iron spheres each of...

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  16. The diameter of a sphere is 6cm. It is melted and drawn into a wire...

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