Login / Signup

Question

Pipe ‘A’ and pipe ‘B’ can fill a cistern in 18 minutes and 20 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If all three pipes are opened together then what is the time taken to fill 50% of the cistern?

A 15 minutes

B 5 minutes

C 22.5 minutes

D 7.5 minutes

Practice Next

More Pipes and cisterns Questions

Pipe ‘A’ takes 20 hours to fill a tank. Pipe ‘B’ takes 80 hours to empty the same tank. If both are opened together, then how long will it take to fill 75%...
Pipe ‘A’ can fill a 150-litre tank in 15 hours. If pipe ‘A’ is 25% more efficient than pipe ‘C’ whereas pipe ‘B’ is 50% more efficient than pipe ‘C’, then ...
Pipe ‘A’ takes 30 hours to fill a tank. Pipe ‘B’ takes 90 hours to empty the same tank. If they are opened together, then 60% of the tank will be filled in...
A cistern has two pipes one can fill it with water in 24 hours and other can empty it in 9 hours. In how many hours will the cistern be emptied if both the...
A tank can be filled by pipe M in 20 hours and by pipe N in 30 hours. Pipe O is 50% more efficient than pipe M. Pipes N and O are opened when the tank is e...
Pipe 'P' and 'Q' can fill a tank in 50 minutes and 1 hour 40 minutes respectively. 'P' is opened alone. After 20 minutes, 'P' is closed and 'Q' is opened. ...
Pipe A can fill a tank in 30 hours. Pipes A and B together can fill it in 12 hours. Pipes B and C together can fill it in 15 hours. In how many hours will ...
Taps Q and R can fill a tank in 24 minutes and 32 minutes, respectively. The efficiency of tap S is 75% greater than that of tap Q. If tap R's efficiency i...
A large reservoir can be filled by two pipes, A and B, in 20 minutes and 30 minutes respectively. If both pipes are opened simultaneously, after how much t...
Tap A and Tap B fill a drum of volume 475 liters in 19 minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the ciste...

Relevant for Exams:

Hey! Ask a query

ask-question