Quiz Discussion

A pipe can fill a tank in x hours and another pipe can empty it in y (y > x) hours. If both pipes are open, in how many hours will the tank is filled?

Course Name: Quantitative Aptitude

  • 1]

    (x - y) hours

  • 2]

    (y - x) hours

  • 3]

    hours

  • 4]

    hours

Solution
No Solution Present Yet

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# Quiz
1
Discuss

A vessel has three pipes connected to it , two to supply liquid and one to draw liquid. The first alone can fill the vessel in hours, the second in 3 hours and the third can empty it in hours. If all the pipes are opened simultaneously when the vessel is half full, how soon will it be emptied?

 

  • 1]

    hours

  • 2]

     hours

  • 3]

    hours

  • 4]

    None of these

Solution
2
Discuss

A tank can be filled by pipe A in 2 hours and pipe B in 6 hours. At 10 A.M. pipe A was opened. At what time will the tank be filled if pipe B is opened at 11 A.M. ?

  • 1] 12.45 A.M.
  • 2] 5 P.M.
  • 3] 11.45 A.M.
  • 4] 12 P.M.
Solution
3
Discuss

A water tank can be filled by a tap in 30 minutes and another tap can fill it in 60 minutes. If both taps are kept open for 5 minutes and then the first tap is closed, how long will it take foe the tank to be filled ?

  • 1] 20 minutes
  • 2] 25 minutes
  • 3] 30 minutes
  • 4] 45 minutes
Solution
4
Discuss

A pipe can fill a tank in 3 hours. There are two outlet pipes from the tank which can empty it in 7 and 10 hours respectively. If all the three pipes are opened simultaneously, then the tank will be filled in -

  • 1] 8 hours
  • 2] 9 hours
  • 3] 10 hours
  • 4] 11 hours
Solution
5
Discuss

Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes, and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P, Q and R respectively. What is the proportion of the solution R in the liquid in the tank after 3 minutes?

  • 1]

  • 2]

  • 3]

  • 4]

Solution
6
Discuss

Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. The number of hours taken by C alone to fill the tank is:

  • 1] 10
  • 2] 12
  • 3] 14
  • 4] 16
Solution
7
Discuss

Three pipes P, Q and R can separately fill a cistern in 4, 8 and 12 hours respectively. Another pipe S can empty the completely filled cistern in 10 hours. Which of the following arrangements will fill the empty cistern in less time than others?

  • 1] Q alone is open
  • 2] P, R and S are open
  • 3] P and S are open
  • 4] P, Q and S are open
Solution
8
Discuss

An outlet pipe can empty a cistern in 3 hours. In what time will empty 2/3 of the cistern?

 

  • 1] 3 hours
  • 2] 5 hours
  • 3] 2 hours
  • 4] 4 hours
Solution
9
Discuss

A tank has a leak which would empty the completely filled tank in 10 hours. If the tank is full of water and a tap is opened which admits 4 litres of water per minute in the tank , the leak takes 15 hours to empty the tank. How many litres of water does the tank hold?

  • 1] 2400 litters
  • 2] 4500 litters
  • 3] 1200 litters
  • 4] 7200 litters
Solution
10
Discuss

A tank is 7 metre long and 4 meter wide wide. At what speed should water run through a pipe 5 cm broad and 4 cm deep so that in 6 hours and 18 minutes water level in the tank rises by 4.5 meter?

  • 1] 10 km/hours
  • 2] 12 km/hours
  • 3] 8 km/hours
  • 4] None of these
Solution
# Quiz