Pipe A alone can fill a tank in 8 hours. Pipe B alone can fill it in 6 hours. If both the pipes are opened and after 2 hours Pipe A is closed, then the other pipe will fill the tank in ____ hours.

Two pipes A and B can fill an empty tank in 10 hours and 16 hours respectively. They are opened alternately for 1 hour each, opening pipe B first. In how many hours, will the empty tank be filled?

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?

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 ?

Raghu’s tanker can fill a cistern in 4 hours. After half the cistern is filled, three more similar tankers are opened. What is the total time taken to fill the cistern completely?

Pipe A and B can fill a tank in 12 h and 18 h, respectively, whereas Pipe C can empty the full tank in 8 h, A and B are opened for \(4\frac{1}{2}\) h and then closed. C alone will empty the tank in (in h)

Pipe P can fill the tank in 5 hours and pipe Q can fill the tank in 6 hours. Both pipes if opened together to fill a tank with twice the capacity, the tank fills in 6 hours given pipe P was closed after 'x' hours. Find the value of x.

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.

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?

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?

Pipes A and B, when working together, can fill an empty tank in 8 hours. If B is stopped after 2 hours, it will take a total of 11 hours to fill the tank. How long would it take A to fill the empty tank alone ?

Pipe 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 the three pipes are opened together, then two third part of the tank will be full after:

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. The leak can drain all the water of the sump in:

Two valves P and B can fill a sump in 37.5 minutes and 45 minutes respectively. Both valves are opened. The sump will be filled in just 30 minutes, if valve B is turned off after:

Pipes A and B can empty a full tank in 16 hours and 24 hours, respectively. Pipe C alone can fill the empty tank in 4 hours. If A,B and C are opened together, the tank will be 35% full after:

A tyre has two punctures. The first punctures alone would have made the tyre flat in 45 minutes, and the second puncture alone would have done it in 90 minutes. If air leaks out at a constant rate, then how long (in minutes) does it take for both the punctures together to make the tyre flat?

Pipes A, B and C are attached to an empty cistern. While the first two can fill the cistern in 4 and 10 hours, respectively, the third can drain the cistern, when filled, in 6 hours. If all the three pipes are opened simultaneously when the cistern is three-fifth full, how many hours will be needed to fill the cistern?

A swimming pool is filled in 10 hours by three tankers A, B and C. Tanker C is twice as fast as B and B is twice as fast as A. How much time will tanker A alone take to fill the swimming pool?

There pipes A,  B and C, can fill a tank in 10, 15, and 18 hours, respectively. A and C are opened for 5 hours, then only pipe A is closed and B is opened at the same time (with C). The total time taken to fill the tank completely is:

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?

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?

Pipe A is a filling pipe, while B and C are emptying pipes. Pipe A alone can fill a tank in 10 hours and pipe B alone can empty two third part of the tank in 20 hours. If all three pipes are opened together, the tank is completely filled in 40 hours. In how many hours can pipe C alone empty two-third part of the tank?

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 system to be completely full?

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:

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?

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?

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 minutes will it take to fill the empty tank?

An inlet pipe can fill an empty tank in 3.6 hours, while an outlet pipe can drain a completely-filled tank in 6.3 hours. If both the pipes are opened simultaneously when the tank is empty, in how many hours will the tank get completely filled?

An inlet pipe can fill an empty tank in 140 hours while an outlet pipe drains a completely-filled tank in 63 hours. If 8 inlet pipes and y outlet pipes are opened simultaneously, when the tank is empty, then the tank gets completely filled in 105 hours. Find the value of y.

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?

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):

Two pipes S₁ and S₂ alone can fill an empty tank in 15 hours and 20 hours respectively. Pipe S₃ alone can empty that completely filled tank in 40 hours. Firstly both pipes S₁ and S₂ are opened and after 2 hour pipe S₃ is also opened. In how much time tank will be completely filled after S₃ is opened?

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?

Pipe A can fill a tank in 840 minutes, and Pipe B can empty the same tank in 1050 minutes. If both pipes are opened together, how many hours will it take to fill the empty tank?

Pipe A can fill a tank in 120 hours, Pipe B can fill the same tank in 144 hours, and Pipe C can fill the same tank in 180 hours. If all three pipes are open together for the first 24 hours, then pipe B is closed. In how many hours will the remaining part of the tank be filled by Pipe A and Pipe C?

Pipe A can fill an empty cistern in 6 hours and pipe B can fill the same empty cistern in 8 hours. Both the pipes are opened simultaneously but after two hours, pipe A is closed. How many hours will B take to fill the remaining part of the cistern?

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.

An inlet pipe can fill an empty tank in 120 hours while an outlet pipe drains a completely-filled tank in 54 hours. If 8 inlet pipes and 3 outlet pipes are opened simultaneously, when the tank is empty, then in how many hours will the tank get completely filled?

Pipe A can fill a tank in 110 hours, Pipe B can fill the same tank in 132 hours and Pipe C can fill the same tank in 165 hours. If all three pipes are open together for first 22 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?

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 56 minutes, Pipe B can fill the same tank in 84 minutes and Pipe C can fill the same tank in 112 minutes. If all three pipes work together then how much minutes will it take to fill the empty tank?

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.

Inlet Pipes A and B can together fill an empty tank in 1.5 hours. Outlet Pipe C, when opened alone, can empty the completely filled tank, in 4.5 hours. When only Pipes A and C are opened together, the empty tank is filled in 6 hours. Find the time taken by Pipe B, when opened alone, to fill the empty tank.

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?

A tap can fill a tank in 20 minutes. if leakage is capable of emptying the tank in 60 minutes, the tank will be filled in how much time?

Pipe A can fill a tank in 155 minutes, Pipe B can fill the same tank in 93 minutes and Pipe C can empty the same tank in 62 minutes. If all three pipes are together, how many minutes will it take to fill the empty tank?

An inlet pipe can fill an empty tank in \(4\frac{1}{2}\) hours while an outlet pipe drains a completely filled tank in \(7\frac{1}{5}\) hours. The tank is initially empty, and the two pipes are alternately opened for an hour each, till the tank is completely filled, starting with the inlet pipe. In how many hours will the tank be completely filled?

If Pipes A and B can fill a tank in 15 min and 20 mins respectively and pipe C empties the tank in 12 mins. what will be the time taken by A, B and C together to fill the tank completely?

A pipe can fill a cistern in 8 hours. It is filled in 9 hours due to a leakage in the bottom of the cistern. Once when the cistern is full, in how much time it will be emptied by the leak?