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|Exercise All Questions|230 Videos
  • TRIANGLES

    RD SHARMA|Exercise All Questions|361 Videos

Similar Questions

Explore conceptually related problems

A metallic sphere of radius 10.5cm is melted and recast into small right circular cones,each of base radius 3.5cm and height 3cm. The number of cones so formed is (a) 105113quad (c) 126 (d) 135

A solid sphere of radius 10.5 cm is melted and recast into smaller solid cones, each of radius 3.5 cm and height 3 cm. Find the number of cones so formed.

A solid metallic sphere of radius 10.5 cm is melted and recast into a number of smaller cones, each of radius 3.5 cm and height 3 cm. Find the number of cones so formed.

A metallic sphere of radius 10.5 cm is melted and then react into small cones, each of radius 3.5 cm and height 3 cm. The number of such cones will be

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

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

A metallic sphere of radius 10.5 cm is melted and then recast into smaller cones, each of radius 3.5 cm and height 3 cm. How many cones are obtained ?

A solid metallic sphere of diameter 21 cm is melted and recast into a number of smaller cones, each of diameter 3.5 cm and height 3 cm. Find the number of cones so formed.

A solid sphere of radius 15cm is melted delta recast into solid right circular cones of radius 20cm and height 8cm. Calculate the number of cones created

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?

RD SHARMA-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 ext...

    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

    |