
A tank has an inlet and two outlet pipes . The tank is fully filled by the inlet pipe in . The tank is half emptied by outlet pipes in . Now the tank is half-filled. After that, the Inlet pipe is opened and the outlet pipe is closed. After , outlet pipe is opened and is closed. The tank is full after . Find the total time that inlet is open.

Important Questions on Direct and Indirect Proportions


Pipe A in comparison to pipe B fills a tank in one fourth time. Pipe C in comparison to pipe A takes 3 times more time to fill the tank. If the three pipes are opened together, the tank is filled in 24 hours. If Pipe C is not opened, how much time will it take to fill the tank?

Of the three pipes, the first two can fill an empty tank in 10.8 and 21.6 hours respectively, while the third pipe can empty the tank in 18 hours. If the tank is empty and all the three pipes are opened together then in how many hours will tank fill?


Quantity : A pipe alone can fill a cistern in minutes. But due to leakage pipe filled only of the cistern in minutes. is the capacity of the cistern in litres and due to leakage litres were leaked out in hour.
Quantity : litres.


respectively. How long will it take to fill the tank if the pipe, A and B are left open?











Two pipes separately take hours and hours respectively to fill a tank. The third pipe takes hours to drain out the water from the tank. How much time will all the three pipes take to fill the completely empty tank?


