Quiz Discussion

Two pipes A and B can fill a cistern in 37.5 minutes and 45 minutes respectively. Both pipes are opened. The cistern will be filled in just half an hour, if the B is turned off after:

 

Course Name: Quantitative Aptitude

  • 1] 5 min.
  • 2] 9 min.
  • 3] 10 min.
  • 4] 15 min.
Solution
No Solution Present Yet

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# Quiz
1
Discuss

Two pipes A and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?

  • 1]

    10 min. 20 sec.

  • 2]

    11 min. 45 sec.

  • 3]

    12 min. 30 sec.

  • 4]

    14 min. 40 sec.

Solution
2
Discuss

Two pipe A and B can fill a water tank in 20 and 24 minutes respectively and a third pipe C can empty at the rate of 3 gallons per minute. If A, B and C are open together to fill the tank in 15 minutes, find the capacity of tank?

  • 1] 180 gallons
  • 2] 150 gallons
  • 3] 120 gallons
  • 4] 60 gallons
Solution
3
Discuss

A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 (1/3) hours to fill the tank. The leak can drain all the water of the tank in:

  • 1]

    4 1/3 hours

  • 2]

    7 hours

  • 3]

    8 hours

  • 4]

    14 hours

Solution
4
Discuss

A pump can fill a tank with water in 2 hours. Because of a leak, it took hours to fill the tank. The leak can drain all the water of the tank in:

 

  • 1]

    hours

  • 2]

    7 hours

  • 3]

    8 hours

  • 4]

    14 hours

Solution
5
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
6
Discuss

A water tap fills a tub in 'p' hours and a sink at the bottom empties it in 'q' hours. If p < q and both tap and sink are opened the tank is filled in 'r' hours, then the relation between p, q, r :

  • 1]

    1/r = 1/p +1/q

  • 2]

    1/r = 1/p -1/q

  • 3]

    r = p + q

  • 4]

    r = p - q

Solution
7
Discuss

A tap drips at a rate of one drop/second. 600 drops make 100 ml. The number of liters wasted in 300 days is -

  • 1] 4320000 liters
  • 2] 432000 liters
  • 3] 43200 liters
  • 4] 4320 liters
Solution
8
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
9
Discuss

3/4 part of the tank is full of water. When 30 litres of water is taken out, the tank becomes empty. The capacity of the tank is -

 

  • 1] 36 liters
  • 2] 42 liters
  • 3] 40 liters
  • 4] 38 liters
Solution
10
Discuss

Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:

  • 1]

    1 13/17 hours

  • 2]

    2 8/11 hours

  • 3]

    3 9/17 hours

  • 4]

    4 1/2 hours

Solution
# Quiz