Question
Pipes ‘D’ and ‘E’ alone can fill a tank in 16
minutes and 24 minutes, respectively, while pipe ‘F’ can empty the same tank in 48 minutes. If all three pipes are opened together, then find the time taken to fill the tank.Solution
ATQ,
Let the capacity of the tank be 96 litres {LCM (16, 24, and 48)}
Efficiency of pipe ‘D’ = (96/16) = 6 litres/minute
Efficiency of pipe ‘E’ = (96/24) = 4 litres/minute
Efficiency of pipe ‘F’ = (96/48) = 2 litres/minute
Required time = {96 / (6 + 4 – 2)} = 12 minutes
Pipe A and B can fill the pool in 38 minutes and 19 minutes, respectively. Pipe C can empty half filled pool in 38 minutes. If all the pipes are opened ...
Pipe ‘E’ alone can fill a tank in 15 hours. When pipe ‘E’ and ‘F’ are opened together, they can fill 90% of the same tank in 9 hours. Find t...
A tank can be filled by Pipe A in 24 minutes and by Pipe B in 30 minutes. Both pipes are opened together and after some time Pipe B is closed. If the ta...
Pipe A can fill a cistern in 18 hours. Pipes A and B together can fill it in 12 hours, while Pipes B and C together can fill it in 9 hours. In how many ...
Vikas and Vishal can do a job in 7 days and 14 days respectively. They began the work together but 4 days before the completion of job, Vikas leaves the...
There are 3 inlet and (z-1) outlet pipes attached to a tank. Each inlet pipe takes 40 hours to fill the tank, and each outlet pipe empties the fully fil...
Pipe ‘P’ and pipe ‘Q’ can fill a tank alone in 40 hours and 60 hours, respectively. If pipe ‘P’ and pipe ‘Q’ were opened together and pi...
An inlet pipe can fill an empty tank in 30 minutes whereas an outlet pipe can empty the fully filled tank in 45 minutes. Find the time taken by both the...
Two pipes X and Y can fill a tank in 90 minutes and 60 minutes respectively. A third pipe Z can empty the tank in 2 hours 30 minutes. X is kept closed. ...
Pipe A can fill a tank in 12 hours and pipe B can fill it in 15 hours. A third pipe C can empty a full tank in 20 hours. If all three pipes are opened t...
