Home
Class 10
MATHS
Find the number of coins 1.5 cm in di...

Find the number of coins 1.5 cm in diameter and 0.2 cm thick, to be melted to form a right circular cylinder of height 10 cm and diameter 4.5 cm. (a) 430 (b) 440 (c) 450 (d) 460

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    RD SHARMA ENGLISH|Exercise All Questions|250 Videos
  • TRIANGLES

    RD SHARMA ENGLISH|Exercise All Questions|366 Videos

Similar Questions

Explore conceptually related problems

The number of solid spheres, each of diameter 6 cm that could be moulded to form a solid metal cylinder of height 45 cm and diameter 4 cm, is

The number of solid spheres, each of diameter 6 cm that can be made by melting a solid metal cylinder of height 45 cm and diameter 4 cm is (a) 3 (b) 5 (c) 4 (d) 6

Find the curved surface area and the total surface area of a right circular cyclinder whose height is 15 cm and the diameter of the cross- sections is 14 cm

The diameter of the base of a right circular cylinder is 42cm and its height is 10cm. Find the volume of the cylinder.

How many silver coins, 1.75\ cm in diameter and of thickness 2 \ mm , must be melted to form a cuboid of dimensions 5. 5\ c mxx\10\ c m\xx\3. 5\ c m ?

A spherical shell of lead, whose external diameter is 18 cm, is melted and recast into a right circular cylinder, whose height is 8 cm and diameter 12 cm. Determine the internal diameter of the shell.

The area of the base of a right circular cylinder is 42pi cm^(2) and height is 3.5 cm. Find its volume.

If the perimeter of a semi-circular protractor is 36 cm, then its diameter is (a) 10 cm (b) 12 cm (c) 14 cm (d) 16 cm

The radii of the internal and external surfaces of a metallic spherical shell are 3 cm and 5 cm respectively. It is melted and recast into a solid right circular cylinder of height 10 2/3 cm. Find the diameter of the base of the cylinder.

The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 12 cm each. The radius of the sphere is (a) 3 cm (b) 4 cm (c) 6 cm (d) 12 cm

RD SHARMA ENGLISH-SURFACE AREAS AND VOLUMES-All Questions
  1. A solid metal sphere of 6 cm diameter is melted and a circular shee...

    Text Solution

    |

  2. A hemispherical tank full of water is emptied by a pipe at the rate o...

    Text Solution

    |

  3. Find the number of coins 1.5 cm in diameter and 0.2 cm thick, to be...

    Text Solution

    |

  4. An iron pillar consists of a cylindrical portion of 2.8 m. height and...

    Text Solution

    |

  5. A circus tent is cylindrical to a height of 3 metres and conical ab...

    Text Solution

    |

  6. Height of a solid cylinder is 10 cm and diameter 8 cm. Two equal co...

    Text Solution

    |

  7. The height of a solid cylinder is 15 cm. and the diameter of its ba...

    Text Solution

    |

  8. The solid is composed of a cylinder with hemispherical ends. If the ...

    Text Solution

    |

  9. The largest sphere is to be curved out of a right circular cylinder ...

    Text Solution

    |

  10. A tent is in the form of a right circular cylinder surmounted by a ...

    Text Solution

    |

  11. A toy is in the form of a cone mounted on a hemisphere of radius 3....

    Text Solution

    |

  12. A cylindrical container is filled with ice-cream, whose diameter is...

    Text Solution

    |

  13. Find the volume of a solid in the form of a right circular cylinder...

    Text Solution

    |

  14. A tent of height 8.25 m is in the form of a right circular cylinder...

    Text Solution

    |

  15. An iron pole consisting of a cylindrical portion 110 cm high and of...

    Text Solution

    |

  16. The interior of a building is in the form of a cylinder of base rad...

    Text Solution

    |

  17. A Right triangle whose sides are 15 cm and 20 cm; is made to revolve a...

    Text Solution

    |

  18. A toy is in the form of a cone mounted on a hemisphere with the sam...

    Text Solution

    |

  19. Find the mass of a 3.5 m long lead pipe, if the external diameter o...

    Text Solution

    |

  20. A solid is in the form of a cylinder with hemispherical ends. Total...

    Text Solution

    |