Home
Class 10
MATHS
An iron cylindrical rod has a height 4 ...

An iron cylindrical rod has a height 4 times its radius is melted and cast into spherical balls of the same radius. The number of balls cast is

A

4

B

3

C

2

D

1

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MENSURATION

    BEYOND PUBLICATION|Exercise EXERCISE|125 Videos

  • JUNE 2016 QUESTION PAPER (1)

    BEYOND PUBLICATION|Exercise EXERCISE|6 Videos

  • Miscellaneous Problems

    BEYOND PUBLICATION|Exercise EXAMPLE|25 Videos

Similar Questions

Explore conceptually related problems

If the metallic cylinder of height 4 cm and radius 3 cm is melted and recast into a sphere, then find the radius of the sphere.

A solid sphere of radius 10 cm is moulded into 8 spherical solid balls of equal radius, then radius of small spherical balls is ……….. cm.

A metallic cylinder of diameter 5cm. And height 3(1)/(3) cm is melted and cast into a sphere. What is its diameter.

A right circular cone is 3.6 cm high and radius of its base is 1.6 cm. It is melted and recast into a right circular cone with radius of its base as 1.2 cm. Find its height.

In a hollow cuboid box of size 4 times 3 times 2 m, the number of solid iron spherical balls of radius 0.5 m that can be packed …………

A solid iron cuboid of dimensions 49 times 33 times 24 cm is melted to form a solid sphere then its radius is

A metallic sphere of radius 4.2 cm. is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder.

A metallic sphere of radius 4.9 cm is melted and recast into the shape of a cylinder of radius 7 cm. Find the height of cylinder.

A metallic sphere of radius 5.4 cm is melted and recast into the shape of a cylinder of radius 9 cm. Find the height of the cylinder.

A cylindrical, gas container is closed at the top and open bottom. If the iron plate of the top is 5/4 times as thich as the plate forming the cylindrical sides, the ratio of the radius to the height of the cylinder using minimum material for the same cpacity is

BEYOND PUBLICATION-MENSURATION-EXERCISE
  1. The volume of the largest right circular cone that can be cut out from...

    Text Solution

    |

  2. The ratio of volume of a cone and cylinder of equal diameter and heigh...

    Text Solution

    |

  3. An iron cylindrical rod has a height 4 times its radius is melted and...

    Text Solution

    |

  4. A cone and a hemisphere have equal bases and equal volumes then the ra...

    Text Solution

    |

  5. The volume of the greatest cylinder that can be cut from a solid woode...

    Text Solution

    |

  6. A shuttle cock is a combination of

    Text Solution

    |

  7. T.S.A of a solid hemisphere whose radius is 22 cm is ………. cm^(2).

    Text Solution

    |

  8. If the radius of base of a cylinder is doubled and the height remains ...

    Text Solution

    |

  9. The number of cubes of side 2 cm which can be cut from a cube of side ...

    Text Solution

    |

  10. If the diameter of a sphere is 'd' then its volume is

    Text Solution

    |

  11. A cylinder, a cone and a hemisphere are of equal base and have the sam...

    Text Solution

    |

  12. Total surface area of a cube is 216cm^(2) then its volume is ………. cm^(...

    Text Solution

    |

  13. The total surface area of a cube is 54 cm^(2) then its side is ……… cm.

    Text Solution

    |

  14. Base area of a regular cylinder is 154 cm^(2) then its radius is ……….

    Text Solution

    |

  15. If the height and radius of a cone are 1.5 and 8 cm then its slant hei...

    Text Solution

    |

  16. Curved surface area of a hemisphere = ……………

    Text Solution

    |

  17. Volume of a cube having 1 cm side is ………….

    Text Solution

    |

  18. Ratio of volumes of two spheres is 8:27 then ratio of their curved sur...

    Text Solution

    |

  19. Football is an example of ……

    Text Solution

    |

  20. Radius of a cone is 'r', height is 'h' and its slant height is 'l' the...

    Text Solution

    |