Home
Class 9
MATHS
A and B can do a work in 20 days, B and ...

A and B can do a work in 20 days, B and C in 40 days and A and C in 30 days. Who is the most efficient among the the three perosn?

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TIME AND WORK

    PEARSON IIT JEE FOUNDATION|Exercise LEVEL 1|30 Videos
  • TIME AND WORK

    PEARSON IIT JEE FOUNDATION|Exercise LEVEL 2|19 Videos
  • TIME AND WORK

    PEARSON IIT JEE FOUNDATION|Exercise LEVEL 3|21 Videos
  • BANKING AND COMPUTING

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|6 Videos

Similar Questions

Explore conceptually related problems

A and B can complete a work in 40 days, B and C in 60 days and A and C is 48 days. Who is the most efficient worker among A, B and C?

A and B together can do work in 20 days, B and and C and do the same work in 60 days. Who is the most efficient among A,B and C?

A and B can do a piece of work in 10 days, B and C in 15 days and C and A in 20 days. C alone can do the work in :

A and B can do a piece of work in 12 days, B and C in 15 days and A and C in 20 days. In how many days can each alone do the work?

A and B can do a job in 12 days, B and C in 15 days and C and A in 20 days. How long would A take to do that work?

A and B can finish a work in 12 days, B and C in 15 days and A and C in 20 days. In how many days would A along finish the work? (A) 20 (B) 30 (C) 40 (D) 60

PEARSON IIT JEE FOUNDATION- TIME AND WORK-TEST YOUR CONCEPTS
  1. The ratio of efficienciess of A, B can C is 2:3:4. Working together, t...

    Text Solution

    |

  2. On working 10 hourse a day, 15 men can complete a piece of work in 20 ...

    Text Solution

    |

  3. A and B can do a work in 20 days, B and C in 40 days and A and C in 3...

    Text Solution

    |

  4. A and B can finish a work together in 12 days, and B and C together in...

    Text Solution

    |

  5. Work done by (x+4) mean in (x+5) days is equal to the work done by (x...

    Text Solution

    |

  6. Pipe A in fill a tank in 15 horurs Pipe A and Pipe B together can fill...

    Text Solution

    |

  7. 18 men can construct 200 m long wall in 16 days working 9 hours per da...

    Text Solution

    |

  8. Vianay and Vikram can complete a work in 48 and 36 days, respectively ...

    Text Solution

    |

  9. A is twice as efficient as B. Time taken by B to complete (4)/(7) par...

    Text Solution

    |

  10. The ratio of work efficiency of a man and a woman is 3:2. A woman can ...

    Text Solution

    |

  11. 12 men of 15 women can do a work in 40 days. 8 men and 10 women can d...

    Text Solution

    |

  12. 12 men and 15 women can do a work in 6 days, and 6 men and 12 women ca...

    Text Solution

    |

  13. Certain sum is sufficient to pay wage to A for 15 days or to B for 30 ...

    Text Solution

    |

  14. A,B and C can do a work in 20,25 and 30, respectively. They together s...

    Text Solution

    |

  15. Anand is 50% more efficient than Bharath and Bharath is 100% more effi...

    Text Solution

    |

  16. 300 men can construct a200m long wall in 12 days working 8 hours a day...

    Text Solution

    |

  17. A,B and C can complete a piece of work in 4 day, 8 days, and 12 days, ...

    Text Solution

    |

  18. Thirty men can dig a well in 10 days on working 8 hours a day. They...

    Text Solution

    |

  19. Time taken by A to complete a work is 7 days more than the time taken ...

    Text Solution

    |

  20. A is 20% more efficient than B.B can do a piece of work in 20 days. In...

    Text Solution

    |