Home
Class 8
MATHS
If the diameter of a wire is decreased b...

If the diameter of a wire is decreased by `10%` by how much per cent approximately will the length be increased to keep the volume constant ?

A

`5%`

B

`17%`

C

`20%`

D

`23%`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • VOLUME AND SURFACE AREA

    S CHAND IIT JEE FOUNDATION|Exercise Self Assessment Sheet - 26|10 Videos
  • VOLUME AND SURFACE AREA

    S CHAND IIT JEE FOUNDATION|Exercise Unit Test - 5|20 Videos
  • VOLUME AND SURFACE AREA

    S CHAND IIT JEE FOUNDATION|Exercise Section A (Question Bank - 27)|20 Videos
  • TRIGONOMETRICAL RATIOS OF STANDARD ANGLES

    S CHAND IIT JEE FOUNDATION|Exercise Self Assessment Sheet - 32 |10 Videos

Similar Questions

Explore conceptually related problems

If the diameter of cross-section of a wire is decreased by 5% how much percent will the length be increased so that the volume remains the same?

If the diameter of cross-section of a wire is decreased by 5%, by how much percent should the length be increased so that the volume remains the same?

If diameter of a circle is decreased by 5%, by what per cent its area will be decreased?

If the diameter of the cross-section of a wire is decreased by 5% ,how much percent will the length increased if volume remains the same.

If base diameter of a cylinder is increased by 50%, then by how much per cent its height must be decreased so as to keep its volume unaltered?

If the radius of the circle is increased by 50%, then by how much per cent the area of the circle is increased?

If the side of a cube is increased by 12%, by how much per cent does its volume increase?

If the length of a rectangle is increased by 50%, by how much per cent its breadth should be reduced to keep the area same ?

If side of a cube is increased by 10%, by how much per cent does its volume increase ?

If length and breadth of a cuboid are increased by 20%, then by how much percent the height should be reduced to keep the volume same ?

S CHAND IIT JEE FOUNDATION-VOLUME AND SURFACE AREA -Section B (Question Bank - 27)
  1. A well 20 m in diameter is dug 14 m deep and the earth taken out is sp...

    Text Solution

    |

  2. The height of a right circular cylinder is 6 m. If three times the ...

    Text Solution

    |

  3. The ratio of the radii of two cylinders is 1:sqrt(3) and their heights...

    Text Solution

    |

  4. If the radius of a right circular cylinder is decreased by 50% and its...

    Text Solution

    |

  5. The radii of the bases of two cylinders are in the ratio 3 : 5 and ...

    Text Solution

    |

  6. The diameter of the base of a cylindrical drum is 35 dm and its height...

    Text Solution

    |

  7. If the diameter of a wire is decreased by 10% by how much per cent app...

    Text Solution

    |

  8. The radius of a cylindrical cistern is 10 metres and its height is ...

    Text Solution

    |

  9. The volume of a right circular cylinder can be obtained from its curve...

    Text Solution

    |

  10. If the radius of a right circular cylinder open at both the ends is de...

    Text Solution

    |

  11. It is required to fix a pipe such that water flowing through it at ...

    Text Solution

    |

  12. A rectangular piece of paper is 24 cm long and 22 cm wide. A cylinder ...

    Text Solution

    |

  13. A hollow right circular cylinder with height 8 cm and base radius 7 cm...

    Text Solution

    |

  14. The magnitude of the volume of a closed right circular cylinder of uni...

    Text Solution

    |

  15. A hollow cylindrical tube 20 cm long is made of iron and its external ...

    Text Solution

    |

  16. What length of solid cylinder 2 cm in diameter must be taken to cas...

    Text Solution

    |

  17. The volume of two cylinders are as a : b and their heights are c : d F...

    Text Solution

    |

  18. The inner diameter of a circular building is 54 cm and the base of the...

    Text Solution

    |

  19. The sum of the radius of the base and height of a solid cylinder is...

    Text Solution

    |

  20. Water flows out through a circular pipe whose internal diameter is 2 c...

    Text Solution

    |