Home
Class 9
MATHS
Into a circular drum of radius 4.2 m and...

Into a circular drum of radius `4.2 m` and height ` 3.5 m,` how many full bags of wheat can be emptied if the space required for wheat in each bag is `2.1` cubic `m.` (Take `pi=22//7)`

Text Solution

Verified by Experts

Volume of drum`=pir^2h`
`=22/7xx4.2xx4.2xx3.5`
Volume of N bags`=2.1xxN`
`2.1xxN=22xx0.6xx4.2xx3.5`
`N=323.4`
Number of bags `= 323.`
Promotional Banner

Topper's Solved these Questions

  • SURFACE AREA AND VOLUME OF A CUBOID AND CUBE

    RD SHARMA|Exercise All Questions|168 Videos
  • SURFACE AREA AND VOLUME OF A RIGHT CIRCULAR CYLINDER CONE

    RD SHARMA|Exercise All Questions|128 Videos
RD SHARMA-SURFACE AREA AND VOLUME OF A RIGHT CIRCULAR CYLINDER-All Questions
  1. From a right circular cylinder with height 10cm and radius of base 6cm...

    Text Solution

    |

  2. Twenty  cylindrical pillars of the Parliament House are to be cleane...

    Text Solution

    |

  3. Into a circular drum of radius 4.2 m and height 3.5 m, how many full...

    Text Solution

    |

  4. A solid cylinder has total surface area of 462 square cm. Its curved...

    Text Solution

    |

  5. If the radius of the base of a right circular cylinder is halved, k...

    Text Solution

    |

  6. A cylindrical road roller made of iron is 1m wide. Its inner diamete...

    Text Solution

    |

  7. The difference between outside and inside surface of a cylindrical m...

    Text Solution

    |

  8. The volume of metallic cylindrical pipe is 748 c m^3 . Its length is 1...

    Text Solution

    |

  9. The curved surface area of a right circular cylinder of height 14\ ...

    Text Solution

    |

  10. The ratio between the curved surface area and the total surface are...

    Text Solution

    |

  11. Savitri had t o make a model of a cylindrical Kaleidoscope for her sci...

    Text Solution

    |

  12. An iron pipe 20 cm long has exterior diameter equal to 25cm. If the...

    Text Solution

    |

  13. The radii of two right circular cylinders are in the ratio 2:3 and ...

    Text Solution

    |

  14. A rectangular sheat of paper 44 c m\ x\ 18 c m is rolled along its ...

    Text Solution

    |

  15. The diameter of a garden roller is 1.4m and it is 2m long. How much...

    Text Solution

    |

  16. The diameter of a roller 120cm long is 84cm. If it takes 500 comple...

    Text Solution

    |

  17. A metal pipe is 77cm long. The inner diameter of a cross section is...

    Text Solution

    |

  18. In Fig. 13.12, you see the frame of a lampshade. It is to be covere...

    Text Solution

    |

  19. Curved surface area of a right circular cylinder is 4. 4\ m^2dot If...

    Text Solution

    |

  20. In a hot water heating system, there is a cylindrical pipe of lengt...

    Text Solution

    |