Home
Class 14
MATHS
A sphere is melted and re-casted into so...

A sphere is melted and re-casted into solid cylinder and its radius are same. Find total surface area of sphere is what percentage of the total surface area of cylinder.

A

A)`88 (4)/(7) %`

B

B)`81 (3)/(7) %`

C

C)`83 (4)/(7) %`

D

D)`85 (5)/(7) %`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MENSURATION

    ADDA247|Exercise PRELIMS QUESTIONS (LEVEL -2)|25 Videos

  • MENSURATION

    ADDA247|Exercise MAINS QUESTIONS |20 Videos

  • MENSURATION

    ADDA247|Exercise PREVIOUS YEAR QUESTION |31 Videos

  • INEQUALITY

    ADDA247|Exercise Previous Year Questions |75 Videos

  • MIXTURE & ALLIGATION

    ADDA247|Exercise PREVIOUS YEAR QUESTIONS |21 Videos

Similar Questions

Explore conceptually related problems

What is the height of a solid cylinder of radius 5 cm and total surface area is 660 sq cm?

Find total surface area of a solid hemi-sphere of radius 7cm.

A solid cylinder has a total surface area of 231cm^(2). Its curved surface area is (2)/(3) of the total surface area.Find the volume of the cylinder.

Prove that the surface area of a sphere is equal to the curved surface area of the circumscribed cylinder.

A right circular cylinder circumscribes a sphere of radius r.Find the ratio of the surface area of the sphere to the curved surface area of the cylinder.

A solid cylinder has total surface area of 462 sq. cm. Its curved surface area is (1)/(3) rd of the total surface area. Then the radius of the cylinder is

The total surface area of solid cylinder is 231 cm^(2) and its curved surface area is (2)/(3) of the total surface area. Find the volume of the cylinder.

A solid cylinder has the total surface area 231 sq. cm. If its curved surface area is 2/3 of the total surface area, then the volume of the cylinder is:

Find the ratio of the total surface area of a sphere and a hemisphere of same radius.

ADDA247-MENSURATION -PRELIMS QUESTIONS (LEVEL -1)
  1. A cylinder of radius 13 cm and height 56 cm is to be melted to cast 'n...

    Text Solution

    |

  2. The ratio of the radius and height of a cylinder is 7:12. If its volum...

    Text Solution

    |

  3. Length of first park is 24 m and ratio between area to perimeter of th...

    Text Solution

    |

  4. A solid spherical ball of lead 3 cm in radius is melted and recast int...

    Text Solution

    |

  5. A sphere is melted and re-casted into solid cylinder and its radius ar...

    Text Solution

    |

  6. Side of a square is 50% more than length of rectangle and ratio of len...

    Text Solution

    |

  7. The perimeter of 4 squares is 24 cm, 32 cm, 40 cm, 48 cm respectively....

    Text Solution

    |

  8. Two squares are drawn on a same base but of different edge length. If ...

    Text Solution

    |

  9. The perimeter of a square is double than the perimeter of a rectangle....

    Text Solution

    |

  10. The ratio of areas of two squares is 289: 169. Find the ratio of their...

    Text Solution

    |

  11. The parallel sides of a trapezium are 4 cm & 10 cm respectively while ...

    Text Solution

    |

  12. The length and breadth of a rectangle are increased by 20% and 10% res...

    Text Solution

    |

  13. The ratio of area of square to that of rectangle of length 10 cm is 4:...

    Text Solution

    |

  14. If the circumference of circle is 88 cm and ratio of radius of circle ...

    Text Solution

    |

  15. An equilateral triangle of side 6 cm has area equal to area of a trape...

    Text Solution

    |

  16. Length of rectangle A is 1.25 times ofits width and area of rectangle ...

    Text Solution

    |

  17. Circumference of base of a cylinder is 132cm^(2) and height is half of...

    Text Solution

    |

  18. The ratio of the volume to surface area of the sphere is 8:3. What is ...

    Text Solution

    |

  19. A circle of radius 27 meter is converted into a semicircle. Find radiu...

    Text Solution

    |

  20. What is the total surface area of cylinder of radius 25 cm and height ...

    Text Solution

    |