Home
Class 14
MATHS
A can do a work in 15 days and B in 20 d...

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is `1/4` b. `1/(10)` c. `7/1` d. `8/(15)`

Promotional Banner

Topper's Solved these Questions

  • TIME AND DISTANCE

    RS AGGARWAL|Exercise All Questions|210 Videos
  • TRUE DISCOUNT

    RS AGGARWAL|Exercise All Questions|26 Videos

Similar Questions

Explore conceptually related problems

A can do a work in 15 days and B in 20 days. If they together work on it for 4 days, then the fraction of the work that is left is :

A can do a work in 20 days and B can do it in 14 days. If they work together for 7 days, then the fraction of the work left is:

A can do a work in 15 days and B in 30 days. If they work on it together, then in how many days will they be able to do 50% of the work?

RS AGGARWAL-TIME AND WORK-All Questions
  1. A is 50% as efficient as B.C does half of the work done by A and B ...

    Text Solution

    |

  2. Two workers A and B working together completed a job in 5 days. If ...

    Text Solution

    |

  3. A can do a work in 15 days and B in 20 days. If they work on it tog...

    Text Solution

    |

  4. A can do a piece of work in 15 days, which B can do in 10 days. B w...

    Text Solution

    |

  5. A and B can complete a work in 18 days and 15 days respectively. Th...

    Text Solution

    |

  6. A, B and C can do a piece of work in 15, 12 and 20 days respectively. ...

    Text Solution

    |

  7. A machine P can print one lakh books in 8 hours, machine Q can print...

    Text Solution

    |

  8. A and B can do a piece of work in 30 days, while B and C can do the...

    Text Solution

    |

  9. X and Y can do a piece of work in 20 days and 12 days respectively....

    Text Solution

    |

  10. A complete 7/10 of a work in 15 days. After that he completes the work...

    Text Solution

    |

  11. A man and a boy can do a piece of work in 24 days. If the man works...

    Text Solution

    |

  12. A and B can together finish a work in 30 days. They worked together...

    Text Solution

    |

  13. X can do a piece of work in 40 days. He works at it for 8 days and ...

    Text Solution

    |

  14. A, B and C together can complete a piece of work in 10 days. All the t...

    Text Solution

    |

  15. A does 4/5 of a work in 20 days. He then calls B and they together fin...

    Text Solution

    |

  16. A and B together can do a piece of work in 30 days. A having worked fo...

    Text Solution

    |

  17. A and B can do a piece of work in 12 days and B and C can do the same ...

    Text Solution

    |

  18. A and B can do a piece of work in 28 and 35 days respectively. They...

    Text Solution

    |

  19. Anuj and Manoj can together paint their house in 30 days. After wor...

    Text Solution

    |

  20. A started a work and left after working for 2 days. Then B was calle...

    Text Solution

    |