Home
Class 8
MATHS
A and B together can do a piece of work ...

A and B together can do a piece of work in 12 days; B and C can do it in 20 days while C and A can do it in 15 days. A, B and C all working together can do it in

A

6 days

B

9 days

C

10 days

D

`10(1)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • TIME AND WORK

    RS AGGARWAL|Exercise TEST PAPER -13|10 Videos

  • TIME AND WORK

    RS AGGARWAL|Exercise TEST PAPER -13 ( Fill in the blanks )|4 Videos

  • TIME AND WORK

    RS AGGARWAL|Exercise EXERCISE 13A|19 Videos

  • THREE - DIMENSIONAL FIGURES

    RS AGGARWAL|Exercise EXERCISE 19 B|5 Videos

  • VOLUME AND SURFACE AREA OF SOLIDS

    RS AGGARWAL|Exercise TEST PAPER -20|16 Videos

Similar Questions

Explore conceptually related problems

A and B can complete a piece of work in 8 days, B and C can do it in 12 days, C and A can do it in 8 days. A, B and C together can complete it in

A and B can do a piece of work in 72 days, B and C can do it in 120 days while A and C can do it in 90 days. In what time can A alone do it?

A and B can do a piece of work in 72 days B and C can do it in 120 days. A and C can do it in 90 days. In how many days, all the three together can do the work?

A and B can do a piece of work in 8 days. B and C can do it in 24 days, while C and A can do it in 8 4/7 days. In how many days can C do it alone?

A and B can do a piece of work in S days. B and C can do it in 24 days while C and A can do it in 8(4/7) days. In how many days can C do it alone?

A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in

A and B can do a piece of work in 9 days; B and C can do it in 12 days; A and C can do it in 18 days.In how many days will A,B and C finish it working together and separately?

RS AGGARWAL-TIME AND WORK -EXERCISE 13B
  1. A alone can do a piece of work in 10 days and B alone can do it in 15 ...

    Text Solution

    |

  2. A man can do a piece of work in 5 days. He and his son working togethe...

    Text Solution

    |

  3. A can do a job in 16 days and B can do the same job in 12 days. With t...

    Text Solution

    |

  4. एक काम को ख़त्म करने में A , B की तुलना में 50 % समय अधिक लेता है...

    Text Solution

    |

  5. A works twice as fast as B. If both of them can together finish a piec...

    Text Solution

    |

  6. A alone can finish a piece of work in 10 days which B alone can do in ...

    Text Solution

    |

  7. The rates of working of A and B are in the ratio 3:4.The number of day...

    Text Solution

    |

  8. A and B together can do a piece of work in 12 days; B and C can do it ...

    Text Solution

    |

  9. 3 men or 5 women can do a work in 12 days. How long will 6 men and 5 w...

    Text Solution

    |

  10. A can do a piece of work in 15 days. B is 50% more efficient than A, B...

    Text Solution

    |

  11. A does 20% less work than B. If A can finish a piece of work in 7(1)/(...

    Text Solution

    |

  12. A किसी काम को 20 दिनों में कर सकता हैजबकि बी उसी काम को 12 दिनों में क...

    Text Solution

    |

  13. A can do a piece of work in 25 days , which B alone can do in 20 days....

    Text Solution

    |

  14. दो पाइप A और B एक टैंक को क्रमश: 20 मिनट और 30 मिनट में भर सकते है । य...

    Text Solution

    |

  15. एक नल किसी टंकी को 8 घंटे में भर सकता है और दूसरा पाइप 16 घंटे में खाल...

    Text Solution

    |

  16. A pump can fill a tank in 2 hours. Due to a leak in the tank it takes ...

    Text Solution

    |

  17. A tank fills two taps A and B in 10 hours and 12 hours respectively, w...

    Text Solution

    |