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If the diameter of the cross - section of a wire is decreased by 5%, by what percentage should the length be increased so that the volume remains the same ?

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BEYOND PUBLICATION-MENSURATION-EXERCISE
  1. If the diameter of the cross - section of a wire is decreased by 5%, b...

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  2. A toy is in the form of a cone mounted on a hemisphere. The radius of ...

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  3. A cubical block of side 7 cm is surmounted by a hemi-sphere. What is t...

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  4. A cone of height 24 cm and radius of base 6 cm is made up of modelling...

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  5. A metallic sphere of radius 4.2 cm. is melted and recast into the shap...

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  6. A juice seller was serving his customers using glasses as shown in the...

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  7. The volume of a hemi-sphere is 2425 1/2 cm^3. Find its curved surface ...

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  8. A cylinderical bucket, 32cm high and with radius of base 18 cm, is fil...

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  9. The diameter of the internal and external surfaces of a hollow hemispe...

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  10. 2.2 cubic Dm of brass is to be drawn into a cylinderical wire 0.25 cm ...

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  11. The rain water from a roof of 22 m xx 20 m drains into a cylinderical ...

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  12. A right circular cone is 3.6 cm high and radius of its base is 1.6 cm....

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  13. How many spherical lead shots each 4.2 cm in diameter can be obtained ...

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  14. A metallic sphere of radius 4.2 cm. is melted and recast into the shap...

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  15. A circus tent is cylindrical upto a height of 3 m and conical above it...

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

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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 composed of a cylinder with hemi-spherical ends. If the who...

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  19. A cylindrical vessel with internal diameter 10 cm and height 10.5 cm i...

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  20. A cylinder road roller made of iron is 1 metre long. Its internal diam...

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  21. A spherical glass vessel has a cylindrical neck 8 cm long, 2 cm in dia...

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