Home
Class 9
MATHS
The inner diameter of a circular well is...

The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find the cost of plastering this curved surface at the rate of Rs 40 per `m^2`.

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find its inner curved surface area.

The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find (i) its inner curved surface area, (ii) the cost of plastering this curved surface at the rate of ₹ 40 per m^2 .Assume pi = 22/7 , unless stated otherwise.

The diameter of a cylindrical well is 4.5 m and depth of the well is 14m. Find the cost of cementing its inner curved surface at the rate of Rs 12.50 per sq. metre.

The slant height and base diameter of a conical tomb are 25 m and 14 m, respectively. Find the cost of whitewashing its curved surface at the rate of Rs 210 per 100 m^2 .

The slant height and base diameter of a conical tomb are 25 m and 14 m, respectively. Find the cost of whitewashing its curved surface at the rate of Rs 210 per 100 m^2 .

The outer diameter of a drainage pipe is 1 m and it is 21 m long. Find the cost of painting the outer surface of the pipe at the rate of Rs 5 per m^2 .

The outer diameter of a drainage pipe is 1 m and it is 21 m long. Find the cost of painting the outer surface of the pipe at the rate of Rs 5 per m^2 .

A cylindrical pillar is 50 cm in diameter and 3.5 m high. Find the cost of white washing its curved surface at the rate of Rs 40 per m^2 .

MBD-Surface Areas and Volumes-Exercise
  1. Curved surface area of a right circular cylinder is 4.4 m^2. If the ra...

    Text Solution

    |

  2. The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find ...

    Text Solution

    |

  3. The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find ...

    Text Solution

    |

  4. In a hot water heating system, there is a cylindrical piping of length...

    Text Solution

    |

  5. Find the lateral or curved surface area of a petrol storage tank that ...

    Text Solution

    |

  6. In Fig., you see the frame of a lampshade. It is to be covered with a ...

    Text Solution

    |

  7. The students of a Vidyalaya were asked to participate in a competition...

    Text Solution

    |

  8. Find the lateral surface area of a right circular cylinder, if its bas...

    Text Solution

    |

  9. A circular cylinder has radius 3 mm and height 80 cm. Find the lateral...

    Text Solution

    |

  10. It is required to make from a sheet of metal a closed cylindrical tank...

    Text Solution

    |

  11. The radius of the base of a closed right circular cylinder is 21 cm an...

    Text Solution

    |

  12. The diameter of a roller 1.5 m long is 84 cm. If it takes 100 revoluti...

    Text Solution

    |

  13. The outer diameter of a drainage pipe is 1 m and it is 21 m long. Find...

    Text Solution

    |

  14. A cylindrical pillar is 50 cm in diameter and 3.5 m high. Find the cos...

    Text Solution

    |

  15. A cylindrical vessel open at the top has a dimeter 20 cm and height 14...

    Text Solution

    |

  16. Diameter of the base of a cone is 10.5 cm and its slant height is 10 c...

    Text Solution

    |

  17. Find the total surface area of a cone, if its slant height is 21 m and...

    Text Solution

    |

  18. Curved surface area of a cone is 308 cm^2 , and its slant height is 14...

    Text Solution

    |

  19. Curved surface area of a cone is 308 cm^2 , and its slant height is 14...

    Text Solution

    |

  20. A conical tent is 10 m high and the radius of its base is 24 m. Find s...

    Text Solution

    |