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Find how many spherical cartridges of di...

Find how many spherical cartridges of diameter 4.2 cm.each can be made from a solid cuboid of size`66cmxx42cmxx21cm?=58212cm^3`

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R G PUBLICATION-SURFACE AREA AND VOLUMES-EXERCISE
  1. Find how many spherical cartridges of diameter 4.2 cm.each can be made...

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  2. 2 cubes each of volume 64cm^3 are joined end to end.Find the surface a...

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  3. A vessel is in the form of a hollow hemisphere mounted by a hollow cyl...

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  4. A toy is in the form of a cone of radius 3.5 cm mounted on a hemispher...

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  5. A cubical block of side 7 cm is surmounted by a hemisphere.What is the...

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  6. A hemispherical depression is cut out from one face of a cubical woode...

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  7. A medicine capsule is in the shape of a cylinder with two hemispheres...

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  8. A tent is in the shape of a cylinder surmounted by a conical top.If th...

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  9. From a solid cylinder whose height is 2.4 cm and diameter 1.4 cm a con...

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

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  11. A solid is in the shape of a cone standing on a hemisphere with both t...

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  12. Rachel,an engineering student,was asked to make a model shaped like a ...

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  13. A gulab jamun contains sugar syrup up to about 30% of volume,Find appr...

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

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  15. A vessel is in the form of an inverted cone.Its height is 8 cm and the...

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  16. A solid iron pole consists of a cylinder of height 220cm and base diam...

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  17. A solid consisting of a right circular cone of height 120cm and radius...

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  18. A spherical glass vessel has a cylindrical neck 8 cm long,2 cm in diam...

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  19. A metallic sphere of radius 4.2 cm is melted and recast into the shape...

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  20. Metallic sphere of radii 6 cm,8 cm and 10 cm respectively are melted t...

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  21. A 20m deep well with diameter 7m is dug and the earth from digging is ...

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