Category: Pipes and Cisterns

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?

Hamad Pipes and Cisterns 11/12/2021

0

A. 15 min
B. 20 min
C. 27.5 min
D. 30 min

A water tank is two-fifth full. Pipe A can fill a tank in 10 minutes and pipe B can empty it in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely?

Hamad Pipes and Cisterns 30/11/2021

0

A. 6 min. to empty
B. 6 min. to full
C. 9 min. to empty
D. 9 min. to full
(more…)

A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously, then after how much time will the cistern get filled?

Hamad Pipes and Cisterns 21/11/2021

0

A. 4.5 hrs
B. 5 hrs
C. 6.5 hrs
D. 7.2 hrs

Two pipes A and B can fill a tank in 4 and 5 hours respectively. If they are turned up alternately for one hour each, the time taken to fill the tank is?

Hamad Pipes and Cisterns 09/11/2021

0

A. 2 hrs 15 min
B. 4 hrs 24 min
C. 5 hrs
D. 3 hrs
(more…)

A pipe can fill a cistern in 20 minutes whereas the cistern when fill can be emptied by a leak in 28 minutes. When both pipes are opened, find when the cistern will be full?

Hamad Pipes and Cisterns 30/09/2021

0

A. 60 min
B. 80 min
C. 70 min
D. 48 min
(more…)

A top can fill a cistern in 8 hours and another can empty it in 16 hours. If both the taps are opened simultaneously the time (in hours) to fill the tank is

Hamad Pipes and Cisterns 07/09/2021

0

A. 8
B. 10
C. 16
D. 24
(more…)

A tap can fill a tank in 6 hours. After half the tank is filled three more similar taps are opened. What is the total time taken to fill the tank completely?

Hamad Pipes and Cisterns 07/09/2021

0

A. 3 hrs 15 min
B. 3 hrs 45 min
C. 4 hrs
D. 4 hrs 15 min
(more…)

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 will it take to fill the tank?

Hamad Pipes and Cisterns 05/09/2021

0

A. 12 min
B. 15 min
C. 25 min
D. 50 min
(more…)

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?

Hamad Pipes and Cisterns 19/08/2021

0

A. 4 1/3 hrs
B. 7 hrs
C. 8 hrs
D. 14 hrs
(more…)

Two pipes A and B can separately fill a tank in 2 minutes and 15 minutes respectively. Both the pipes are opened together but 4 minutes after the start the pipe A is turned off. How much time will it take to fill the tank?

Hamad Pipes and Cisterns 12/08/2021

0

A. 9 min
B. 10 min
C. 11 min
D. 12 min
(more…)