Two taps A and B can fill a cistern in 12 min and 16 min respectively. If both taps are opened together and at the end of 4 min, B tap is turned off, th...
Two inlet pipes 'A' and 'B' can fill an empty tank in 36 minutes and 48 minutes, respectively. Another outlet pipe 'C' can empty the tank in 144 minutes...
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 ...
Pipe X can empty a completely filled tank in 60 hours. Pipe Y and X together can fill an empty tank completely in (z+6) hours. The efficiency of pipe Y ...
Pipe ‘A’ can fill a tank in 20 hours while pipe ‘B’ takes 30 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 1...
Pipe ‘A’ takes 40 minutes to fill a tank. Pipe ‘B’ takes 50 minutes to empty the same tank. If pipe ‘B’ is opened 21...
Tap P can fill the tank in 5 hours and Tap Q can empty it in 7(1/2) hours. Tap P starts filling and they opened for 1 hour each alternatively. In what t...
Pipe 'A' takes 20 minutes to fill half of the tank. Pipe 'B' is twice as efficient as pipe 'A'. Find the percentage of the tank filled by both in 8 minu...
Pipes 'G' and 'H' can fill a tank in 15 and 20 minutes respectively. A leak opens when the tank is half full, removing (2/7)th of the water supplied. Wh...
Two pipes, X and Y, can individually fill a tank in 50 minutes and 25 minutes respectively. If both pipes are opened simultaneously, after how much time...
