Home
Class 10
MATHS
A metallic sphere of radius 10.5 cm i...

A metallic sphere of radius 10.5 cm is melted and recast into small right circular cones, each of base radius 3.5 cm and height 3 cm. The number of cones so formed is (a) 105 (b) 113 (c) 126 (d) 135

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

A metallic sphere of radius 10.5 cm is melted and then recast into small cones each of radius 3.5 cm and height 3 cm. Find the number of cones thus formed.

A solid sphere of radius 15 cm is melted and recast into solid right circular cones of radius 2.5 cm and height 8 cm. Calculate the number of cones recast.

A solid sphere of radius 10.5 cm is melted and recast into smaller solid cones, each of radius 3.5cm and height 3cm. Find the number of cones so formed. (U s epi=(22)/7)

A solid sphere of radius 10.5 cm is melted and recast into smaller solid cones, each of radius 3.5cm and height 3cm. Find the number of cones so formed. (U s epi=(22)/7)

A solid sphere of radius 10.5 cm is melted and recast into smaller solid cones, each of radius 3.5cm and height 3cm. Find the number of cones so formed. (U s epi=(22)/7)

A metallic solid sphere of radius 10.5 is melted and recasted in to smaller solid cones each of radius 3.5 cm and height 3 cm .How many cones will be made?

The surface area of a solid metallic sphere is 1 0256 cm^(2). It is melted and recast into solid right circular cones each of radius 2.5 cm and height 8 cm. Find the number of cones formed [Take pi = 3.14 ].

A metallic sphere of radius 7 cm is melted and recast in to right circular cone of same radius. Find the height of the cone.

A solid metallic sphere of diameter 28 cm is melted and recast into a number of smaller cones, each of diameter 4 2/3 cm and height 3 cm. Find the number of cones so formed.

A solid metallic hemisphere of diameter 28 cm is melted and recast into a number of identical solid cones, each of diameter 14 cm and height 8 cm. Find the number of cones so formed.

RD SHARMA ENGLISH-SURFACE AREAS AND VOLUMES-All Questions
  1. The diameter of a copper sphere is 18 cm. The sphere is melted and ...

    Text Solution

    |

  2. A hemisphere of lead of radius 7 cm is cast into a right circular c...

    Text Solution

    |

  3. A metallic sphere of radius 10.5 cm is melted and recast into small...

    Text Solution

    |

  4. A cone, a hemisphere and a cylinder stand on equal bases and have t...

    Text Solution

    |

  5. A metallic spherical shell of internal and external diameters 4 cm and...

    Text Solution

    |

  6. The larges sphere is carved out of a cube of side 10.5 cm. Find the...

    Text Solution

    |

  7. Find the weight of a hollow sphere of metal having internal and exte...

    Text Solution

    |

  8. A solid sphere of radius ' r ' is melted and recast into a hollo...

    Text Solution

    |

  9. Lead spheres of diameter 6 cm are dropped into a cylindrical beaker...

    Text Solution

    |

  10. The height of a solid cylinder is 15 cm and the diameter of its bas...

    Text Solution

    |

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

    Text Solution

    |

  12. The surface area of a sphere is the same as the curved surface area...

    Text Solution

    |

  13. A cylinder and a cone have equal radii of their bases and equal hei...

    Text Solution

    |

  14. A rectangular vessel of dimensions 20 c mxx16 c mxx11 c m . is full...

    Text Solution

    |

  15. If r1 and r2 be the radii of two solid metallic spheres and if they ...

    Text Solution

    |

  16. A solid metal sphere of 6 cm diameter is melted and a circular shee...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |