Quiz Discussion

A cistern has two taps which fill it in 12 minutes and 15 minutes respectively. There is also a waste pipe in the cistern. When all the pipes are opened, the empty cistern is full in 20 minutes. How long will the waste pipe take to empty the full cistern?

Course Name: Quantitative Aptitude

  • 1]

    12 min

  • 2]

    10 min

  • 3]

    8 min

  • 4]

    16 min

Solution
No Solution Present Yet

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# Quiz
1
Discuss

Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long it will take to fill the tank ?

  • 1]

    10 mins

  • 2]

    12 mins

  • 3]

    15 mins

  • 4]

    20 mins

Solution
2
Discuss

Three pipes A, B and C can fill a tank in 6 hours, 9 hours and 12 hours respectively. B and C are opened for half an hour, then A is also opened. The time taken by the three pipes together to fill the remaining part of the tank is -

  • 1]

    3 hours

  • 2]

    2 hours

  • 3]

     hours

  • 4]

    hours

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 pipe can fill a tank with water in 3 hours. Due to leakage in bottom, it takes hours to fill it. In what time the leak will empty the completely filled tank?

 

  • 1]

    12 hours

  • 2]

    21 hours

  • 3]

    hours

  • 4]

    hours

Solution
5
Discuss

A large tanker can be filled by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half?

  • 1] 15 minutes
  • 2] 20 minutes
  • 3] 27.5 minutes
  • 4] 30 minutes
Solution
6
Discuss

Two pipes A and B can fill a tank with water in 30 minutes and 45 minutes respectively. The third pipe C can empty the tank in 36 minutes. First A and B are opened. After 12 minutes C is opened. Total time ( in minutes ) in which the tank will be filled up is -

  • 1] 12 minutes
  • 2] 24 minutes
  • 3] 30 minutes
  • 4] 36 minutes
Solution
7
Discuss

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in:

  • 1] 81 minutes
  • 2] 108 minutes
  • 3] 144 minutes
  • 4] 192 minutes
Solution
8
Discuss

A tank with capacity T liters is empty. If water flows into the tank from pipe X at the rate of x liters per minute and water is pumped out by Y at the rate of y liters per minute and x > y, then how many minutes will the tank be filled?

  • 1]

    (x - y) 60 T minutes

  • 2]

    (T - x) minutes

  • 3]

      minutes

  • 4]

     minutes

Solution
9
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
10
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
# Quiz