Three pipes A, B, and C can fill a cistern in 138 hours. After working together for 46 hours, C is closed, and A and B can fill the remaining part in 138 hours. Find the number of hours taken by C alone to fill the cistern.

A pipe can fill a sump with water in 2 hours. Because of a leak, it took 2\(\frac{2}{3}\) hours to fill the sump. How long will it take for all the water in the sump to drain out from the leak?

Two taps A and B can fill a bathtub in 42 minutes and 48 minutes respectively. If the drain valve is open they can together fill in 50 minutes. Find the time in which the valve of drain can empty the bathtub. (approx.)

Pipes P and Q can fill the tank in 18 and 27 minutes, respectively, while pipe R can empty the full tank in 54 minutes. After P and Q are opened together for 6 minutes, they are closed, and R is opened. Find the time taken by R alone to empty the tank.

There are two pipes used to fill a tank and when operated together, they can fill the tank in 20 minutes. If one pipe can fill the tank two and a half times as quickly as the other, then the faster pipe alone can fill the tank in:

One pipe can fill an empty cistern in 4 hours while another can drain the cistern when full in 10 hours. Both the pipes were turned on when the cistern was half-empty. How long will it take for the cistern to be full?

A pipe can fill an empty tank in 5 minutes and another pipe can empty it in 6 minutes. If both the pipes are opened simultaneously, then in how much time will the tank be filled?

Two pipes fill a tank when working individually in 25 and 40 hours, respectively while a third pipe can drain the filled tank in 16 hours. If all the three pipes are turned on at the same time when the tank is empty, how long will it take to fill the tank completely?

Pipe A can empty a filled tank in 28 hours while Pipe B can fill the same tank, when empty, in 35 hours. If alternately pipes A and B are turned on for an hour each time, starting when the tank is full, how long will it take to empty the tank?

Manoj and his wife Swathi fill a tank with water fetched from a well. Manoj fetches 5 litres of water in 4 minutes whereas Swathi fetches 4 litres of water in 5 minutes. Find the time taken by them together to fetch 205 litres of water.

A container is normally filled in 5 hours. However, it takes 6 hours when there is a leak at the bottom. If the container is full, in what time would the leak empty it, if no water is allowed into the container during that period?

Two pipes can fill a cistern in 3 hours and 4 hours respectively while a 3rd pipe can drain the cistern empty in 8 hours. All the three pipes were opened together when the cistern was 1/12 full. How long did it take for the cistern to be completely full?

Ayush can fill a tank in 15 minutes while his friend Shraddha can fill the same tank in 4 minutes. If they worked with Arya who can fill 1/60th tank per minute, then find the time taken by all three to fill the tank.

Pipes A and B can empty a full tank in 15 hours and 18 hours, respectively. Pipe C alone can fill the tank in 6 hours. If all three pipes are opened together, then two-thirds of the tank will be full after:

A pipe can fill a cistern in 20 minutes, but an outlet can empty it in 28 minutes. When both the pipes are opened, at what time is the cistern filled?

Pipes P and Q can fill a water tank in 10 hours and 15 hours, respectively. A pipe R can empty a tank filled with water in 12 hours. Initially, the tank is empty and only pipes P and Q are opened at 6 a.m. and pipe R is also opened at 9 a.m. By what time will the tank be filled?

Two pipes X and Y can fill a cistern in 21 hours and 24 hours, respectively. The pipes are opened simultaneously and it is found that due to a leakage in the bottom, it takes 48 minutes more to fill the cistern. When the cistern is full, in how much time will the leak empty it if no pipe is open during that time?

Pipe X can fill a tank in 9 hours and Pipe Y can fill it in 21 hours. If they are opened on alternate hours and Pipe X is opened first, in how many hours shall the tank be full?

Pipes A and B can empty a full tank in 36 and 45 minutes respectively, whereas pipe C alone can fill the tank in 15 minutes. B and C are opened together for 15 minutes, and then both are turned off and A is opened. Pipe A will empty the tank in (in minutes)?

Three pipes A, B, and C can fill a cistern in 138 hours. After working together for 46 hours, C is closed, and A and B can fill the remaining part in 138 hours. Find the number of hours taken by C alone to fill the cistern.

Two pipes P and Q are connected to a tank and can fill a tank in 7 and 5 hours respectively. Another Pipe R can empty a filled tank in 3 hours. If all three pipes are opened together, then in how much time will the tank be filled?

One of the two inlet pipes works twice as efficiently as the other. The two, working alongside a drain pipe that can empty a cistern all by itself in 8 hours, can fill the empty cistern in 8 hours. How many hours will the less efficient inlet pipe take to fill the empty cistern by itself?

Two pipes P and Q can fill a cistern in 18 and 24 minutes respectively. Both pipes are opened, but after some time, the slower pipe is closed. The cistern gets filled in 12 minutes from the start. When is the slower pipe closed?

Three pipes A, B, and C can fill a cistern in 270 hours. After working together for 90 hours, C is closed, and then A and B fill the remaining part in 270 hours number of hours taken by C required to fill the cistern.

Two pipes can fill a cistern separately in 36 minutes and 45 minutes, respectively. A waste pipe can drain off 40 litres per minute. If all the three pipes are opened, the cistern fills in one hour. The capacity (in litres of the cistern) is:

Pipes A and C can fill an empty cistern in 32 and 48 hours, respectively while Pipe B can drain the filled cistern in 24 hours. If the three pipes are turned on together when the cistern is empty, how many hours will it take for the cistern to be \(2\over3 \) full?

There are two inlet pipes A and B connected in the tank. pipe A fills the tank 20% faster than pipe B and takes 6 minutes less than pipe B to fill the tank. In how much time will the tank be filled if both the pipes are opened simultaneously?

Three pipes P, Q, and R can fill a cistern in 40 minutes, 80 minutes, and 120 minutes, respectively. Initially, all the pipes are opened. After how much time (in minutes) should the pipes Q and R be turned off so that the cistern will be completely filled in just half an hour?

A and B pipes can fill a tank in 10 and 20 minutes, respectively. Pipe C can empty the tank in 30 minutes. All three pipes are opened at a time in the beginning. However, pipe C is closed 2 minutes before the tank is filled. At what time will the tank be full (in minutes)?

Pipe A can empty a tank in 54 minutes, Pipe B can fill the same tank in 81 minutes and Pipe C can fill the same tank in 108 minutes. If all three pipes are opened together, how many minutes they will take to fill the empty tank?

Two pipes can fill a cistern in 12 hours and 16 hours, respectively. The pipes are opened simultaneously and it is found that due to leakage at the bottom, it takes 90 minutes more to fill the cistern. How much time will the leakage take to empty the completely filled tank?

An inlet pipe can fill a water storage tank in 11 hours and an outlet pipe can empty the completely filled tank in 15 hours .If both pipes opened simultaneously. The time taken to fill the empty tank (in hrs) is :

Pipe 'R' and pipe 'S' can fill a tank in 12 hours and 18 hours respectively. If both pipes are opened at 10 a.m., then at what time (in p.m.) should the pipe 'R' be closed to fill the tank at exactly midnight?

Pipe A can fill a tank in 12 minutes, pipe B can fill it in 18 minutes and pipe C can empty the full tank in 36 minutes. If all the pipes are opened simultaneously, how much time will it take to fill the empty tank completely?

Two pipes fill a tank when working individually in 25 and 40 hours, respectively while a third pipe can drain the filled tank in 16 hours. If all the three pipes are turned on at the same time when the tank is empty, how long will it take to fill the tank completely?

Two inlet pipes can fill an empty tank in 21 and 24 hours and one outlet pipe can empty the tank in 42 hours. If all the pipes opened simultaneously then, how many hours are required to fill the full tank?

Pipes A and B can fill a tank in 12 hours and 16 hours respectively and pipe C can empty the full tank in 24 hours. All three pipes are opened toghether, but after 4 hours pipe B is closed. In how many hours, the empty tank will be completely filled?

A tank can be filled in 24 minutes when the two pipes A & B fill together. If pipe A was stopped after 20 minutes, the tank is filled in 30 minutes. How much time will A alone take to fill the tank?

Pipes A, B and C can fill a tank in 15, 30 and 40 hours, respectively. Pipes A, B and C are opened at 6 a.m., 8 a.m. and 10 a.m., respectively, on the same day. When will the tank be full?

A tank is filled in 4 hours by three pipes. A , B and . Pipes C is \(1\frac{1}{2}\)times as fast as B and B is 3 times as fast as A. How many hour will pipe A alone take to fill the tank ?

Three pipes P, Q, and R can fill a tank in 30 minutes, 20 minutes, and 10 minutes. When the tank is empty, all three pipes are opened while they discharge three chemical solutions S, T, and U respectively. What is the proportion of solution U in the contents in the tank after 3 minutes?

Pipe A can fill a tank in 130 hours, Pipe B can fill the same tank in 156 hours, and Pipe C can fill the same tank in 195 hours. If all three pipes are open together for the first 26 hours, and then pipe B is closed. In how many hours will the remaining part of the tank be filled by Pipe A and Pipe C?

Two pipes A and B can fill a tank in 48 minutes and 66 minutes, respectively. If both the pipes are opened simultaneously, then after how many minutes should pipe B be closed so that the tank gets filled in 32 minutes?

Two pipes A and B can fill a tank in 21 hours and 18 hours, respectively. If both the pipes are opened simultaneously, then the time taken to fill the tank is:

Two pipes X and Y can fill up a tank in 32 minutes and 16 minutes respectively. If both the pipes are opened simultaneously, after how much time should Y be closed, so that the tank is full in 20 minutes?

The efficiency of pipe A to fill a tank is 5/3 times the efficiency of pipe B. Another pipe C can empty the tank in 18 hours. When pipe A and pipe B are opened, the tank gets filled in 12 hours, Then find in how much time the tank will be filled if all three pipes are opened simultaneously

Manoj and his wife Swathi fill a tank with water fetched from a well. Manoj fetches 5 litres of water in 4 minutes whereas Swathi fetches 4 litres of water in 5 minutes. Find the time taken by them together to fetch 205 litres of water.

A pipe can fill a tank in 15 hours. Due to leakage in the bottom it is filled in 20 hours. If the tank is full, and the pipe is closed, how much time will the leak take to empty the entire tank?

Pipe A can empty a tank in 64 minutes, Pipe B can fill the same tank in 96 minutes, and Pipe C can fill the same tank in 128 minutes. If all three pipes are full, how many minutes will it take to fill the empty tank?

Pipe A can fill an empty tank in 18 hours and pipe B can fill the same empty tank in 24 hours. If both pipes are opened simultaneously, how much time (in hours) will they take to fill the empty tank?