Home
Class 10
MATHS
The surface area of a solid metallic sph...

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`].

Text Solution

Verified by Experts

The correct Answer is:
80
Promotional Banner

Topper's Solved these Questions

  • REVISION PAPER -5

    ICSE|Exercise SECTION B|28 Videos
  • REVISION PAPER -4

    ICSE|Exercise SECTION - B|26 Videos
  • SAMPLE PAPER 1

    ICSE|Exercise Questions (Section - C)|12 Videos

Similar Questions

Explore conceptually related problems

The total area of a solid metallic sphere is 1256 cm^(2). It is melted and recast into solid right circular cones of radius 2.5 cm and height 8 cm. Calculate : the number of cones recast.

The surface area of a solid metallic sphere is 2464 cm^(2). It is melted and recast into solid right circular cones of radius 3.5 cm and height 7 cm. Calculate : the number of cones recast. (Take pi = (22)/(7))

The suface area of a solid metallic sphere is 2464 cm^(2) . It is melted and recast into solid right circular cones of radius 3.5 cm and height 7 cm. Calculate : (i) the radius of the sphere.

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.

The surface area of a solid metallic sphere is 2464 cm^(2). It is melted and recast into solid right circular cones of radius 3.5 cm and height 7 cm. Calculate : the radius of the sphere and the number of cones recast.

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.

The total area of a solid metallic sphere is 1256 cm^(2). It is melted and recast into solid right circular cones of radius 2.5 cm and height 8 cm. Calculate : the radius of the solid sphere, and the no. of cones cast (π=3.14).

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

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

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

ICSE-REVISION PAPER -5-SECTION B
  1. If P(x , y) is any point on the line joining the point A(a ,0)a n dB(0...

    Text Solution

    |

  2. Show that , if A = [{:(1,3),(2,6) :}] and B = [{:(-1,4), (2,1):}] the...

    Text Solution

    |

  3. Prove that angle in the same segment of a circle are equal.

    Text Solution

    |

  4. On a graph paper, plot the triangle ABC whose vertices are at the poin...

    Text Solution

    |

  5. The point P divides the joining of (2,1) and (-3,6) in the ratio 2:3. ...

    Text Solution

    |

  6. In the given TA is a tangent to the cirlce and TBC is a secant. If AD ...

    Text Solution

    |

  7. The ends of a diagonal of a square have co-ordinates (-2,p) and (p,2) ...

    Text Solution

    |

  8. If have shares of three companies A,B and C in the ratio 2:3:4. Compan...

    Text Solution

    |

  9. Tickets numbered from 1 to 20 are mixed up together and then a ticket ...

    Text Solution

    |

  10. A solid toy is in the form of a right circular cylinder with a hemi...

    Text Solution

    |

  11. The surface area of a solid metallic sphere is 10256 cm^(2). It is mel...

    Text Solution

    |

  12. The marks obtained (out of 100) by 400 students in an examination are...

    Text Solution

    |

  13. The marks obtained (out of 100) by 400 students in an examination are...

    Text Solution

    |

  14. The marks obtained (out of 100) by 400 students in an examination are...

    Text Solution

    |

  15. If 49- 5x le 27 - x, find, the smallest value of x, when x is a rea...

    Text Solution

    |

  16. If 49- 5x le 27 - x, find, the smallest value of x, when x is an in...

    Text Solution

    |

  17. The drawn alongiside (not drawn to scale) shows two stragit lines AB a...

    Text Solution

    |

  18. If cosec theta .cos (theta + 54 ^(@)) = 1, find the value of theta

    Text Solution

    |

  19. (a) the figure drawn alongside shows two straight lines AB and CD . if...

    Text Solution

    |

  20. Solve using formula : 6x ^(2) - 35 x + 50 = 0

    Text Solution

    |