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If the radius of a sphere is doubled,...

If the radius of a sphere is doubled, how many times does its volume become? (a) 2 times       (b) 4 times       (c) 6 times      (d) 8 times

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RS AGGARWAL-VOLUME AND SURFACE AREAS-All Questions
  1. The radii of two spheres are in the ratio 3 : 2. Their volumes will...

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  2. Surface area of a sphere is 2464 cm2. If its radius be doubled, the...

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  3. If the radius of a sphere is doubled, how many times does its volum...

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  4. If the radius of a sphere is increased by 2 cm, then its surface ar...

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  5. If the measured value of the radius is 1.5% larger, the percentage ...

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  6. The volumes of two spheres are in the ratio of 64 : 27. The ratio o...

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  7. If the surface areas of two spheres are in the ratio of 4 : 25, the...

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  8. If the volume and surface area of a sphere are numerically the same...

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  9. If three metallic spheres of radii 6 cms, 8 cms and 10 cms are melt...

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  10. A solid metallic sphere of radius 8 cm is melted and recast into sp...

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  11. A spherical ball of lead 3cm in diameter is melted and recast into ...

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  12. If a solid sphere of radius 10 cm is moulded into 8 spherical solid...

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  13. A hollow spherical metallic ball has an external diameter 6 cm and ...

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  14. A solid piece of iron of dimensions 49xx33xx24 cm is moulded int...

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

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  16. The volume of the largest sphere which can be carved out of a cube ...

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  17. How many lead shots each 3 mm in diameter can be made from a cuboid...

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  18. A sphere and a cube have equal surface areas. The ratio of the volu...

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  19. The ratio of the volume of a cube so that of a sphere which will fi...

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  20. The volume of the largest possible cube that can be inscribed in a ...

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