Home
Class 8
MATHS
An empty tank can be filled by two pipes...

An empty tank can be filled by two pipes individually in 30 minutes and 60 minutes respectively. There is also a pipe which can empty the full tank in 45 minutes.If all the three pipes are open,how much time does it take to fill the empty tank ?

A

36 minutes

B

18 minutes

C

30 minutes

D

24 minutes

Text Solution

Verified by Experts

The correct Answer is:
A
Consider the filling of tank as a positive work and emptying the tank as negative work.
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 DISTANCE

    PEARSON IIT JEE FOUNDATION|Exercise Concept Application (Level 2 )|3 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 and B are two taps which can fill a tank individually in 10 minutes and 20 minutes respectively. However, there is a leakage at the bottom, which can empty a filled tank in 40 minutes. If the tank is empty initially, how much time will both the taps take to fill the tank with leakage ?

A cistern has two inlets A and B which can fill it in 12 minutes and 15 minutes respectively. An outlet C can empty the full cistern in 10 minutes.If all the three pipes are opened together in the empty tank,how much time will they take to fill the tank completely?

Two pipes A and B can fill a tank in 100 minutes and 120 minutes respectively. Pipe C can alone empty the same tank in 200 minutes. If all three pipes are opened together, then in how many minutes will the tank be filled?

Pipe A can fill a tank in 12 minutes,pipe B in 18 minutes and pipe C can empty the full tank in 36 minutes. If all of them are opend simultaneously, find the time taken to fill the empty tank.

Pipe A can fill a tank in 12 minutes,pipe B in 18 minutes and pipe C can empty the full tank in 36 minutes. If all of them are opend simultaneously, find the time taken to fill the empty tank.

Two pipes A and B can fill a tank in 12 minutes and 15 minutes respectively while a third pipe C can empty the full thank in 20 minutes.All the three pipes are opened in the beginning. However,pipe C is closed 6 minutes before the tank is filled.In what time will the tank be full?

Pipe A and B can fill a water tank in 30 and 45 minutes respectively while pipe C can take out all the water is 60 minutes. If the three pipes are opened simultaneously . How long it fill the empty tank

One pipe can fill a tank in 40 minutes and an outlet pipe can empty the full tank in 24 minutes.If both the pipes are opened simultaneously, what time will it take for the full tank to be emptied?

One pipe can fill a tank in 40 minutes and an outlet pipe can empty the full tank in 24 minutes.If both the pipes are opened simultaneously, what time will it take for the full tank to be emptied?

PEARSON IIT JEE FOUNDATION-TIME AND WORK PIPES AND CISTERNS-CONCEPT APPLICATION (LEVEL-1)
  1. Two taps A and B can fill a tank in 15 minutes and 20 minutes respecti...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  8. A tap can fill a tank in 48 minutes whereas another tap can empty i...

    Text Solution

    |

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

    Text Solution

    |

  10. Nitu alone can complete (4)/(5)th of a piece of work in 20 days. She w...

    Text Solution

    |

  11. A and B can complete a piece of work in 12 days and 24 days respectivl...

    Text Solution

    |

  12. A can do one-third of a piece of work in 4 days and B can do one-fourt...

    Text Solution

    |

  13. Six men and 4 women can do a piece of work in 32 days. Seven men and 1...

    Text Solution

    |

  14. Nimai and Gaurang can complete a piece of work in 40 days and 60 days ...

    Text Solution

    |

  15. Two students A and B can finish solving some set of questions in 10 m...

    Text Solution

    |

  16. A certain number of people can complete can complete a piece of work i...

    Text Solution

    |

  17. The ratio of the rate of work done for a woman and a man is 2:1. Six w...

    Text Solution

    |

  18. A and B together can do a piece of work in 10 days. If A alone can do ...

    Text Solution

    |

  19. X can do a piece of work in 6 days while Y can do the same work in 8 ...

    Text Solution

    |

  20. Thirty men can do a piece of work in 16 days working 8 hours a day. Ho...

    Text Solution

    |