🚰 Pipes & Cisterns — Practice Questions

Pipe A can fill a tank in 8 hours and Pipe B can fill it in 24 hours. If both are opened together for 3 hours, what fraction of the tank is filled?

Pipe A can fill a tank in 6 hours. Pipe B can empty it in 13 hours. If both pipes are opened together, how long will it take to fill the tank?

Pipe A can fill a tank in 10 hours. If it is opened for 5 hours, what fraction of the tank gets filled?

Three pipes A, B and C can individually fill a tank in 12, 12, and 12 hours respectively. How long will they take to fill the tank if all three are opened together?

Pipe A can fill a tank in 15 hours and Pipe B can fill it in 30 hours. If both pipes are opened together, how long will it take to fill the tank?