Home
Class 14
MATHS
Four pipe A, B, C and D can fill a ciste...

Four pipe A, B, C and D can fill a cistern in 20, 25, 40 and 50 hours respectively.
If A and B are opened as inlet pipe into the cistern and C and D are opened as outlet pipes from the cistern and all the four pipes are opened simultaneously, how many hours will it take to fill the cistern completely?

A

20 hours

B

`11 1/9` hours

C

`22 9/9` hours

D

45 hours

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • THEORY OF EQUATIONS

    QUANTUM CAT|Exercise QUESTION BANK|573 Videos

  • TIME, SPEED AND DISTANCE

    QUANTUM CAT|Exercise QUESTION BANK|368 Videos

Similar Questions

Explore conceptually related problems

An inlet pipe takes 8 hoursto fill a tank. An outlet pipe takes 12 hours to empty it. If both pipes are opened simultaneously, in how many hours will the tank be filled?

Pipe A and B can fill a cistern in 10 hours and 15 hours respectively. When a third pipe C which works as an outlet pipe is also open then the cistern can be filled in 18 hours. The outlet pipe can empty a full cistern in :

Two pipes A and B can separately empty a cistern in 12 hours and 15 hours respectively. In what time will the cistern be emptied, if both the pipes are opened together ?

Pipes A, B and C are attached to an empty cistern. While the first two can fill the cistern in 4 and 10 hours, respectively, the third can drain the cistern, when filled, in 6 hours. If all the three pipes are opened simultaneously when the cistern is three-fifth full, how many hours will be needed to fill the cistern?

Pipe A and B can fill a cistern in 10 hours and 15 hours Respectively. When a third pipe C which works as an outlet pipe is also open then the cistern can be filled in 18 hours. The outlet pipe can empty a full cistern in :

QUANTUM CAT-TIME AND WORK-QUESTION BANK
  1. Three typists A, B and C working together 8 hours per a can type 900 p...

    Text Solution

    |

  2. Pipes A,B and C can fill a tank in 15, 20 and 30 hours respectively Th...

    Text Solution

    |

  3. Four pipe A, B, C and D can fill a cistern in 20, 25, 40 and 50 hours ...

    Text Solution

    |

  4. A tank is connected with four pipes A, B, C and D of which two are fil...

    Text Solution

    |

  5. Two pipes A and B can fill a tank in 24 hours and (120)/7 hours respec...

    Text Solution

    |

  6. Pipe A can fill a tank in 12 hours and pipe B can fill it in 15 hours,...

    Text Solution

    |

  7. If both pipes are opened simultaneously at a time when the tank was on...

    Text Solution

    |

  8. A tap can fill a cistern in 9 hours. After one-third of the tank is fi...

    Text Solution

    |

  9. An inlet pipe can fill a tank in 5 hours and an outlet pipe can empty ...

    Text Solution

    |

  10. An inlet pipe can fill a tank in 5 hours and an outlet pipe can empty ...

    Text Solution

    |

  11. If the 8th tap takes 80 hours to fill the tank then the 10th and 12th ...

    Text Solution

    |

  12. Pipe A takes 3//4 of the times required by pipe B to fill the empty ta...

    Text Solution

    |

  13. A man working 6 hours a day takes 8 days to complete a project. How ma...

    Text Solution

    |

  14. A is thrice as efficient as B.A and B cam complete a piece of work in ...

    Text Solution

    |

  15. 24 men can do a piece of work in 30 days. If the 4 men deny to work, t...

    Text Solution

    |

  16. A tank is connected with 8 pipes. Some of them are inlet pipes and res...

    Text Solution

    |

  17. A tank has two inlet pipes which can fill the empty tank in 12 hours a...

    Text Solution

    |

  18. Working together, two pipes A and B can fill 7 empty tanks of the same...

    Text Solution

    |

  19. Four men and three women can do a job in six days. When five men and s...

    Text Solution

    |

  20. There are five water pipes P1 P2, P3, P4,P5 connected to a tank, which...

    Text Solution

    |