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Three spheres of radius 1 cm, 6 cm and 8...

Three spheres of radius 1 cm, 6 cm and 8 cm are melted and recast into a single solid sphere. Find the radius of new sphere.

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KALYANI PUBLICATION-Surface Area and Volume-EXERCISE
  1. Find the height and volume of cylinder whose area of the curved surfac...

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  2. The amount of cubic units of the volume of a sphere is double the amou...

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  3. Three spheres of radius 1 cm, 6 cm and 8 cm are melted and recast into...

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  4. Find the surface area and volume of a hemisphere whose radius is 10 cm...

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  5. Two cubes each of volume 125 cm^3 are joined end to end. Find the surf...

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  6. Three cubes each of volume 216 cm^3 are joined end to end. Find the su...

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  7. A pen stand made of wood is in the shape of a cuboid with four concial...

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  8. A toy is in the form of a cone of radius 3.5 cm mounted on a hemisphe...

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  9. A toy is in the form of a cone mounted on a hemisphere with same radiu...

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

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  11. A vessel is in the form of a hemispherical bowl mounted by a hollow cy...

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  12. A circus tent is cylindrical height of 3 m and conical above it. If it...

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  13. A solid is composed of a cylinder with hemisphere ends. If the whole l...

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  14. A cylindrical tub of radius 5 cm and length 9.8 cm is full of water. A...

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  15. A wooden article was made by scooping out a hemisphere from each end o...

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  16. A tent is in form of a cylinder of diameter 4.2 m and height 4 m surmo...

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  17. A tent is in the shape of a cylinder surmounted by a conical top. If t...

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  18. A solid is in the form of a right-circular cone mounted on a hemispher...

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  19. A cylindrical tub of radius 5 cm and length 9.8 cm is full of water. A...

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  20. How many lead balls each of radius 1 cm each be made from a sphere who...

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