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Three solid spheres of iron whose diamet...

Three solid spheres of iron whose diameters are 2cm, 12cm and 16cm, respectively, are melted into a single solid sphere. Find the radius of the solid sphere.

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RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A SPHERE -All Questions
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  12. A solid wooden toy is in the shape of a right circular cone mounted...

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  13. Twenty seven solid iron spheres, each of radius r and surface area ...

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  14. Find the volume of a sphere whose radius is: 2cm          (ii)  3.5...

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  15. Find the volume of a sphere whose diameter is: 14cm        (ii)  ...

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  16. A hemispherical tank has inner radius of 2.8m. Find its capacity in...

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  17. A hemispherical bowl is made of steel, 0.25 cm thick. The inner rad...

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  18. How many bullets can be made out of a cube of lead whose edge measu...

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