Home
Class 9
MATHS
The base radius of an iron cylinder is 1...

The base radius of an iron cylinder is 15 centimetres and its height is 32 centimetres. It is melted and recast into a cylinder of base radius 20 centimetres. What is the height of this cylinder?'

Promotional Banner

Topper's Solved these Questions

  • POLYNOMIALS

    V PUBLICATION|Exercise Question Bank|24 Videos

  • PROPORTION

    V PUBLICATION|Exercise QUESTIONBANK|14 Videos

Similar Questions

Explore conceptually related problems

The base diameter of a metallic cylinder is 18 centimetres and its helght 24 centimetres. It is melted and recast into cylinders of base diameter 12 centimetres and height 6 centimetres. How many such small cylinders are got?

A solid hemisphere of wax with radius 12 centimetres is melted and made into. a cone of base radius 6 centimetres, compute the height of the cone.

Each edge of a metal cube is 15 centimetres. It is melted and recast into a square pyramid of base edge 25 centimetres. What would be its height?

What is the volume of a cylinder of base radius 4 centimetres and height 20 centimetres?

The base radius and height of a solid metal cylinder are 12 centimetres and 20 centimeters. By melting it and recasting, how many cones of baseradius 4 centimetres and height 5 centimetres can be made?

The base radius and height of a metal. cylinder are 4 centimetres and 10 centimetres. If it is melted and recast. into spheres of radius 2 centimetres each, how many spheres can be made?

A solid metal cylinder is of base radius 18 çentimetres and height 40 centimetres. By melting this down, how many cylinders of base radius 2 centimetres. and height 5 centimetres can be made?

V PUBLICATION-PRISMS-QUESTIONBANK
  1. What is the volume of a cylinder of base radius 4 centimetres and heig...

    Text Solution

    |

  2. A block of wood in the shape of a square prism has the sides of its ba...

    Text Solution

    |

  3. The base radius of an iron cylinder is 15 centimetres and its height i...

    Text Solution

    |

  4. A solid metal cylinder is of base radius 18 çentimetres and height 40 ...

    Text Solution

    |

  5. Two rectangular sheets, each of sides 10 centimetres and 6 centimetres...

    Text Solution

    |

  6. A rectangular piece of land is 32 meters Iong and 24 meters wide. A re...

    Text Solution

    |

  7. In the newly constructed auditorium in the school, there are 8 cylindr...

    Text Solution

    |

  8. A cylinder piece of wood has diameter 8 cm and height 15 cm . A square...

    Text Solution

    |

  9. A piece of wood in the shape of a square prism has each side of the ba...

    Text Solution

    |

  10. The volume of a cylindrical vessel is 6838. 92 cu.cm and its height is...

    Text Solution

    |

  11. Two cylindrical cans of radii 15 ~cm, 10 ~cm and heights 25 ~cm, 18 ~c...

    Text Solution

    |

  12. Find the surface area of a cylinder of volume 448 pi cu.cm and height ...

    Text Solution

    |

  13. What is the height of à rectangular prism of volume 7 litres, length 2...

    Text Solution

    |

  14. A cylindrical vessel contains oil and when 3 litres of oil is removed ...

    Text Solution

    |

  15. A copper block length 5 cm, breadth 4 cm and thickness 2 cm is melted ...

    Text Solution

    |

  16. A tin in the shape of a rectangular prism of dimensions 50 ~cm, 40 ~cm...

    Text Solution

    |

  17. The ratio of the diameters of two cylinders is 1: 2 and the ratio of t...

    Text Solution

    |

  18. The base of a wooden prism is a regular hexagon. Its base perimeter is...

    Text Solution

    |

  19. a) Radius of a cylinder is 10 cm and its height is 5 cm. Find the base...

    Text Solution

    |

  20. Base area of a metallic triangular prișm is 36 sq.cm and its height is...

    Text Solution

    |