Home
Class 8
MATHS
A\ a n d\ Q together can do a piece of w...

`A\ a n d\ Q` together can do a piece of work in 10 days, `Q\ a n d\ R` can do the same work together in 12 days, while `A\ a n d\ R` can do together in 15 days. How long each will take to do it separately?

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • SQUARES AND SQUARE ROOTS

    RD SHARMA ENGLISH|Exercise All Questions|183 Videos

  • UNDERSTANDING PHASE-II (QUADRILATERALS)

    RD SHARMA ENGLISH|Exercise All Questions|46 Videos

Similar Questions

Explore conceptually related problems

36 men can do a piece of work in 7 days. How many men will do the same work in 42 days ?

A can do a piece of work in 10 days, B in 18 days and A, B and C together in 4 days. In what time would C do it alone ?

72 men do a piece of work in 25 days. In how many days will 30 men do the same work ?

If 8 men can do a piece of work in 15 days, how many men are required to do the same piece of work in 10 days ?

10 boys can dig a pitch in 12 hours. How long will 8 boys take to do it?

A and B together can do a piece of work in 6(2)/(3) days, but B along can do it in 10 days. How long will A take to do it alone ?

If 12 women can do a piece of work in 9 days, in how many days can 18 women do it ?

A and B complete a piece of work in 24 days, B and C do the same work in 36 days, and A, B and C together finish it in 18 days. In how many days will : C alone,

A and B complete a piece of work in 24 days, B and C do the same work in 36 days, and A, B and C together finish it in 18 days. In how many days will : A alone,

If 78 men can do a work in 140 days, in how many days will 42 men do the same work ?

RD SHARMA ENGLISH-TIME AND WORK-All Questions
  1. Kami, Karya and Kirti can together weave a carpet in 4 days. Kami by h...

    Text Solution

    |

  2. A and B can do piece of work in 12 days; B and C in 15 days; C and A i...

    Text Solution

    |

  3. A\ a n d\ Q together can do a piece of work in 10 days, Q\ a n d\ R ca...

    Text Solution

    |

  4. A can do a piece of work in 25 days and B can finish it in 20 days. Th...

    Text Solution

    |

  5. A\ a n d\ B can polish the floors of a building in 25 days. A alone ca...

    Text Solution

    |

  6. Suneeta can embroider a saree in 15 days. Her sister-in-law Abha ca...

    Text Solution

    |

  7. 5 men can complete a job in 8 days. How many days will it take if 1...

    Text Solution

    |

  8. Seema weaves 25 baskets in 35 days. In how many days will she weave...

    Text Solution

    |

  9. 15 boys earn Rs 900 in 5 days, how much will 20 boys earn in 7 days...

    Text Solution

    |

  10. Spinning 3 hours daily, Kanta can spin 2 kg cotton-balls in 12 days...

    Text Solution

    |

  11. Somari sweeps 600 m long railway platform in 2 1/2 hours. His wife Ima...

    Text Solution

    |

  12. A cistern can be filled by one tap in 8 hours, and by another in 4 hou...

    Text Solution

    |

  13. Pipe A can fill an empty tank in 6 hours and pipe B in 8 hours. If bot...

    Text Solution

    |

  14. A cistern can be filled by a tap in 6 hours and emptied by an outlet p...

    Text Solution

    |

  15. A pipe can fill a cistern in 6 hours. Due to a leak in the bottom i...

    Text Solution

    |

  16. A tank can be filled by two taps A\ a n d\ B in 12 hours and 16 hours ...

    Text Solution

    |

  17. Rakesh can do piece of work in 20 days. How much work can be do in ...

    Text Solution

    |

  18. Rohan can paint 1/3 of a painting in 6 days. How many days will he ...

    Text Solution

    |

  19. Anil can do a piece of work in 5 days and ankur in 4 days. How long wi...

    Text Solution

    |

  20. Mohan takes 9 hours to mow a large lawn. He and Sohan together can ...

    Text Solution

    |