Home
Class 14
MATHS
If the radius of the base of a cone is d...

If the radius of the base of a cone is doubled, and the volume of the new cone is three times the volume of the original cone, then what will be the ratio of the height of the original cone to that of the new cone ?
यदि किसी शंकु के आधार की त्रिज्या दोगुनी कर दी गयी है , और नए शंकु का आयतन आरंभिक शंकु के आयतन का तिगुना है, तो आरंभिक शंकु और नए शंकु की ऊँचाइयों के बीच क्या अनुपात होगा ?

A

`9 : 4`

B

`4 : 3`

C

`2 : 9`

D

`1 : 3`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SSC CGL MAINS 2018 NUMBER SYSTEM

    PINNACLE|Exercise Exercise|28 Videos
  • SSC CHSL 2018 QUESTION PAPER

    PINNACLE|Exercise Exercise|600 Videos
PINNACLE-SSC CGL MAINS ALL MENSURATION QUES 2018-Exercise
  1. Three solid metallic spheres whose radii are 1cm, x cm and 8 cm, are m...

    Text Solution

    |

  2. The ratio of the volumes of two cylinders is x:y and the ratio of thei...

    Text Solution

    |

  3. If the radius of the base of a cone is doubled, and the volume of the ...

    Text Solution

    |

  4. If the radius of a right circular cylinder is decreased by 20% while i...

    Text Solution

    |

  5. If the diameter of the base of a cone is 42 cm and its curved surface ...

    Text Solution

    |

  6. A right circular cylinder of maximum volume is cut out from a solid wo...

    Text Solution

    |

  7. The lateral surface area of a cylinder is 352 cm^2. If its height is 7...

    Text Solution

    |

  8. If the radius of a sphere is increased by 4 cm, its surface area is in...

    Text Solution

    |

  9. The volume of a right pyramid is 45sqrt3 cm^3 and its base is an equil...

    Text Solution

    |

  10. The internal and external radii of a hollow hemispherical vessel are 6...

    Text Solution

    |

  11. The base of right prism is a trapezium whose parallel sides are 11cm a...

    Text Solution

    |

  12. If a cuboid of dimensions 32cm x 12cm x 9cm is cut into two cubes of s...

    Text Solution

    |

  13. If the diameter of the base of a right circular cylinder is reduced by...

    Text Solution

    |

  14. A solid metallic sphere of radius 8 cm is melted and drawn into a wire...

    Text Solution

    |

  15. A field roller, in the shape of a cylinder, has a diameter of 1 m and ...

    Text Solution

    |

  16. The base of a right pyramid is an equilateral triangle with side 8 cm,...

    Text Solution

    |

  17. A right circular solid cone of radius 3.2 cm and height 7.2 cm is melt...

    Text Solution

    |

  18. A cylindrical vessel of radius 3.5 m is full of water. If 15400 litres...

    Text Solution

    |

  19. A hemispherical bowl of internal diameter 36 cm is full of a liquid. T...

    Text Solution

    |

  20. If the curved surface area of a solid cylinder is one-third of its tot...

    Text Solution

    |