Home
Class 14
MATHS
The radius of cross section of a solid r...

The radius of cross section of a solid right circular cylindrical rod is 3.2 dm. The rod is melted and 44 equal solid cubes of side 8 cm are formed. The length of the rod is :
(Take `pi = (22)/(7)`)

A

a) 56 cm

B

b) 7 cm

C

c) 5.6 cm

D

d) 0.7 cm

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MENSURATION

    KIRAN PUBLICATION|Exercise TYPE VI|47 Videos

  • MENSURATION

    KIRAN PUBLICATION|Exercise TYPE VII|60 Videos

  • MENSURATION

    KIRAN PUBLICATION|Exercise TYPE - IV|169 Videos

  • LCM AND HCF

    KIRAN PUBLICATION|Exercise Test Yourself |18 Videos

  • MISCELLANEOUS

    KIRAN PUBLICATION|Exercise TYPE-VI|15 Videos

Similar Questions

Explore conceptually related problems

The sum of the radius of base and height of a solid right circular cylinder is 37 cm. If the total surface area of the solid cylinder is 1628 cm^(2) , find the volume of the cylinder. (pi = (22)/(7))

The radius of cross-section of a solid cylindrical rod of iron is 50 cm. The cylinder is melted down and formed into 6 solid spherical balls of the same radius as that of the cylinder. The length of the rod (in metres) is

The side of solid metallic cube is 20 cm. The cube is melted and recast into 8 equal solid cubical dice. Determine the side of the dice.

The sum of radius of base and height of a solid right circular is 37 cm . If the total surface area of the solid cylinder is 1628 sq.cm ,find the volume of the cylinder , ( use pi=22/7 )

The total surface area of a solid right circular cylinder is 1617 cm^(2) . If the diameter of its base is 21 cm, then what is its volume (in cm^(2) )? (Take pi=(22)/(7) )

The largest possible sphere is carved out of a wooden solid cube of side 7cm. Find the volume of the wood left.(Use pi=(22)/(7))

Three metallic solid cubes of sides 6 cm, 8 cm and 10 cm are melted to form a single cube. The length of the edge of the new cube is

The volume (in cu.cm.) of a right circular cylinder with radius 2 cm and height 2 cm is ( take pi = (22)/(7) )

KIRAN PUBLICATION-MENSURATION-TYPE - V
  1. The base area of a right pyramid is 57 sq. units and height is 10 unit...

    Text Solution

    |

  2. The radius of a sphere and right circular cylinder is 'r' units. Their...

    Text Solution

    |

  3. The radius of cross section of a solid right circular cylindrical rod ...

    Text Solution

    |

  4. A cylindrical vessel of height 5 cm and radius 4 cm is completely fill...

    Text Solution

    |

  5. The height of a right circular cylinder is three times the radius of t...

    Text Solution

    |

  6. How many balls of radius 2 cm can be made by melting a bigger ball of ...

    Text Solution

    |

  7. What is the volume of a hollow cylinder open at both ends, if its leng...

    Text Solution

    |

  8. A solid metallic sphere of radius 14 cm is melted and recast into a co...

    Text Solution

    |

  9. A solid right circular cone of radius 4 cm and height 7 cm is put insi...

    Text Solution

    |

  10. The cross section of a canal is in the shape of an isosceles trapezium...

    Text Solution

    |

  11. The volume of a cuboid is 320 cubic cm. Find its total surface area if...

    Text Solution

    |

  12. A cone is hollowed out of a solid wooden cube of side 6 cm. The diamet...

    Text Solution

    |

  13. The curved surface area of a hemisphere is 27.72 square cm and volume ...

    Text Solution

    |

  14. A cone of radius 3.5 cm and height 12 cm is completely filled with wat...

    Text Solution

    |

  15. A solid metallic sphere of radius 21 cm is melted and recast into a co...

    Text Solution

    |

  16. If the height of a given cone becomes thrice and the radius of the bae...

    Text Solution

    |

  17. What is the volume (in cm^(3)) of a right pyramid of height 12 cm and ...

    Text Solution

    |

  18. If the height of a given cone becomes four times and the radius of the...

    Text Solution

    |

  19. 40 men took a dip in a pool 30 metre long and 25 metre broad. If the a...

    Text Solution

    |

  20. The length, breadth and height of a cuboid are in the ratio 19:11:13. ...

    Text Solution

    |