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The volume of the two spheres are in the ratio 64:27. Find the difference of their surface areas, if the sum of their radii is 7.

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RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A SPHERE -All Questions
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  6. A dome of a building is in the form of a hemisphere. From inside, i...

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  7. Twenty seven solid iron spheres, each of radius r and surface area S a...

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  8. A wooden toy is in the form of a cone surmounted on a hemisphere. Th...

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  9. A toy is in the shape of a right circular cylinder with a hemispher...

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  10. Three solid spheres of iron whose diameters are 2cm, 12cm and 16cm,...

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  11. How many spherical lead shots each 4.2 cm in diameter can be obtain...

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  12. A sphere of diameter 6cm is dropped in a right circular cylindrical...

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  13. A solid lead ball of radius 7cm was melted and then drawn into a wi...

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  14. A sphere, a cylinder and a cone are of the same radius and same hei...

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  15. Find the surface area and total surface area of a hemisphere of rad...

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  16. Find the surface area of a sphere of radius 7cm.

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  17. The internal and external diameters of a hollow hemispherical vesse...

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  18. The internal and external diameters of a hollow hemi-spherical vesse...

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  19. A right circular cylinder just encloses a sphere of radius r as show...

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  20. Show that the surface area of a sphere is the same as that of the l...

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