Home
Class 8
MATHS
A works 3 times as fast as B. If B can c...

A works 3 times as fast as B. If B can complete a work in 60 days, then in how many days can A and B together complete the same work ?

A

20

B

12

C

15

D

30

Text Solution

Verified by Experts

The correct Answer is:
C
As A work 3 times as fast as B, he takes `(1)/(3)`rd of the time taken by B.
Promotional Banner

Topper's Solved these Questions

  • TIME AND WORK, PIPES AND CISTERNS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL-2)|20 Videos

  • TIME AND WORK, PIPES AND CISTERNS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL-3)|7 Videos

  • TIME AND WORK, PIPES AND CISTERNS

    PEARSON IIT JEE FOUNDATION|Exercise Essay Type Question|5 Videos

  • TIME AND WORK PIPES AND CISTERNS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL-3)|7 Videos

Similar Questions

Explore conceptually related problems

A alone can complete a work in 12 days and B alone can complete the same work in 24 days. In how many days can A and B together complete the same work?

A works thrice as much as B. If A can complete this work in 12 days, then in how many days will both A and B complete this work ?

A alone can complete a work in 6 days and B alone can complete the same work in 8 days. In how many days both A and B together can complete the same work?

A can work twice as fast as B.A. and C together can work three times as fast as B. If A ,B and C complete a job in 30 days working together, in how may days can each of them complete the work?

A can work twice as fast as B.A. and C together can work three times as fast as B. If A ,B and C complete a job in 30 days working together, in how may days can each of them complete the work?

A is twice as fast as B and together they can complete a work in 20 days. In how many days can A alone complete the work?

A is twice as fast as B and together they can complete a work in 20 days. In how many days can A alone complete the work?

A alone can complete a piece of work in 6 days and B alone can complete the same piece of work in 12 days. In how many days can A and B together complete the same piece of work ?

U, V and W together can complete a work in 15 days. U alone can complete the work in 60 days. In how many days V and W together can complete the same work?

PEARSON IIT JEE FOUNDATION-TIME AND WORK, PIPES AND CISTERNS-CONCEPT APPLICATION (LEVEL-1)
  1. A and B can do a piece of work in 50 days and 40 days respectively. If...

    Text Solution

    |

  2. A can do a piece of work in 10 days and B can do it in 15 days. After ...

    Text Solution

    |

  3. A works 3 times as fast as B. If B can complete a work in 60 days, the...

    Text Solution

    |

  4. A and B can do (4)/(5)th and (3)/(5)th of a piece of work in 15 days ...

    Text Solution

    |

  5. Rakesh and Siva can do a piece of work in 15 days and 18 days respecti...

    Text Solution

    |

  6. Twelve men can do a piece of work in 15 days. How many men are require...

    Text Solution

    |

  7. Working individually, A and B can complete a piece of work in 30 days...

    Text Solution

    |

  8. If 4 men or 6 women can do a piece of work in 24 days, then how many m...

    Text Solution

    |

  9. Gauthan and Karthik can do a piece of work in 10 days and 20 days resp...

    Text Solution

    |

  10. P and Q undertook a piece of work for ₹ 37500. P alone can do it in 20...

    Text Solution

    |

  11. A is twice as efficient as B and they together can complete a piece of...

    Text Solution

    |

  12. Two taps A and B can fill a tank in 15 minutes and 20 minutes respecti...

    Text Solution

    |

  13. Malini can do a piece of work in 20 days, while Shalini can do it in 2...

    Text Solution

    |

  14. Working individually, A,B and C can finish a piece of work in 16 days....

    Text Solution

    |

  15. A,B and C can do a piece of work in 12,18 and 9 days respectively. A s...

    Text Solution

    |

  16. Vinay and Varma can do a work in 30 days and 60 days respectively. If ...

    Text Solution

    |

  17. An empty tank can be filled by two pipes individually in 30 minutes an...

    Text Solution

    |

  18. One pipe can fill a tank in 40 minutes and an outlet pipe can empty th...

    Text Solution

    |

  19. A tap can fill an empty tank in 48 minutes whereas another tap can em...

    Text Solution

    |

  20. Two taps A and B can fill a tank in 10 hours and 40 hours respectively...

    Text Solution

    |