Pipe E can fill a tank in 40 minutes while pipe F can fill the same tank in 50 minutes. If pipe E and F are opened simultaneously, then after how much t...
A cistern has two pipes. One can fill it with water in 16 hours and other can empty it in 10 hours. In how many hours will the cistern be emptied if bo...
Two pipes A and B are opened together to fill a tank. Both the pipes fill the tank in time “x”. If A separately takes 8 minute more time than “x�...
Pipe ‘A’ fills a tank in 25 hours, and pipe ‘B’ empties it in 50 hours. If both are opened together, how much time will it take to fill 80% of ...
Pipe ‘P’ and pipe ‘Q’ together can fill an empty tank in 18 hours while pipe ‘Q’ and pipe ‘R’ together take 12 hours to fill the same ta...
An inlet pipe can fill an empty tank in 18 minutes whereas an outlet pipe can empty the fully filled tank in 27 minutes. Find the time taken by both the...
Pipe 'A' fills half tank in 14 minutes. Pipe 'B' is 4 times as efficient. What % of the tank will be filled by both in 4 minutes?
Pipes 'J' and 'K' can fill a tank in 12 hours and 18 hours respectively, while pipe 'L' can empty it in 36 hours. All pipes are opened together when the...
Tap A can fill a tank in 15 hours. Tap B can fill 12.5% part of the same tank in 2 hours, whereas Tap C can alone empty a tank in ‘x’ hours. 5/8 par...
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...
