Home
Class 14
MATHS
A pipe can fill a cistern in 12 min and ...

A pipe can fill a cistern in 12 min and another pipe can fill it in 15 min, but a third pipe can empty it in 6 min. The first two pipes are kept open for 5 min in the beginning and then the third pipe is also opened. Time taken to empty the cistern is

A

30 min.

B

33 min.

C

37 1/2 min.

D

45 min.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PERMUTATION AND COMBINATION

    UPKAR PUBLICATION |Exercise QUESTION BANK|59 Videos

  • PRACTICE SET -6

    UPKAR PUBLICATION |Exercise Part-III (Quantative Aptitude)|50 Videos

Similar Questions

Explore conceptually related problems

A pipe P can fill a tank in 12 min and another pipe R can fill it in 15 min .but the 3rd pipe M can empty it in 6 min. The 1st two pipes P and R are kept open for double the 2.5 min in the beginning and then the 3rd pipe is also opened. In what time is the tank emptied?

A pipe can fill a tank in 15 minutes and another one in 10 minutes. A third pipe can empty the tank in 5 minutes. The first two pipes are kept open for 4 minutes in the beginning and then the third pipe is also opened. In what time will the tank be emptied ?

Two pipes A and B can fill a tank in 25 min and 45 min respectively. Pipe C can empty. The tank in 10 minutes. If pipe A and pipe B are kept open for 5 minutes in The begining and then C is also opened. In what time will the tank be emptied?

A pipe can fill a tank in 10h , while an another pipe can empty it in 6h . Find the time taken to empty the tank , when both the pipes are opened up simultaneously .

A pipe can fill an empty tank in 12 min and another pipe can fill it in 24 min. If both the pipes are kept open simulteneously, then in how many minutes will the tank get filled?

A pipe can fill a tank in 10 min. The other pipe can fill in 20 min. If and outlet pipe drains water at the rate of 1760 l/min. Then the tank get empty in 25 min. Find the capacity of tank.

A pipe can fill a tank in 10 minutes while another pipe can empty it in 12 minutes. If the pipes are opened alternately each for 1 minute, beginning with the first pipe. the tank will be full after (in minutes):

Pipe A can fill a tank in 10 minutes and pipe B can empty it In 15 minutes. If both the pipes are opened in an empty tank, the time taken to make it full in

UPKAR PUBLICATION -PIPES AND CISTERNS-QUESTION BANK
  1. Two pipes A and B can fill a tank in 15 hours and 20 hours respectivel...

    Text Solution

    |

  2. There are two taps to fill a tank while a third to empty it. When the ...

    Text Solution

    |

  3. A pipe can fill a cistern in 12 min and another pipe can fill it in 15...

    Text Solution

    |

  4. A leak in the bottom of a tank can empty the full tank in 6 hours. An ...

    Text Solution

    |

  5. Two pipes X and Y can full a cistern in 24 minutes and 32 minutes resp...

    Text Solution

    |

  6. A cistern is normally filled in 8 h but takes 2 h more to fill because...

    Text Solution

    |

  7. A water tank is 2/5th full. Pipe A can fill the tank in 10 minutes and...

    Text Solution

    |

  8. A pipe can empty a tank in 12 minutesand another pipe can empty it in ...

    Text Solution

    |

  9. There is a leak in the bottom of cistern .When the cistern is throughl...

    Text Solution

    |

  10. Tap 'A' can fill a water tank in 25 minutes , tap 'B' can fill the sam...

    Text Solution

    |

  11. A cistern is normally filled in 8 h but takes 2 h more to fill because...

    Text Solution

    |

  12. A cistern can be filled by two pipes ,A and B in 12 minutes and 14 min...

    Text Solution

    |

  13. A cistern has 3 pipes A and B and C,A and B can fill it in 2 and 3 hou...

    Text Solution

    |

  14. Two pipes A and B can fill a cistern in 20 minutes and 25 minutes resp...

    Text Solution

    |

  15. Two pipes, P and g can fill a cistern in 12 and 15 minutes respectivel...

    Text Solution

    |

  16. A cistern can be filled by two pipes in 30 and 40 minutes respectively...

    Text Solution

    |

  17. Three taps A,B and C can fill a cistern in 10,15 and 20 minutes respec...

    Text Solution

    |

  18. Three taps A,b and C can till a cistern in 10 min. , 12 min, and 15 mi...

    Text Solution

    |

  19. A cistern has a leak which would empty it is in 15 hours.A tap is turn...

    Text Solution

    |

  20. A cistern can be filled by two pipes in 30 min and 36 min respectively...

    Text Solution

    |