Pipe ‘A’ fills a tank in 36 hours and pipe ‘B’ empties it in 90 hours. If both are opened simultaneously, how much time will it take to fill 60%...
Two inlet pipes 'A' and 'B' can fill an empty tank in 36 minutes and 54 minutes, respectively. Another outlet pipe 'C' can empty the tank in 108 minutes...
Time taken by pipes 'X', 'Y' and 'Z' to fill a tank is 48 minutes, 80 minutes and 60 minutes respectively. All the pipes are opened together. 'X' is clo...
Three pipes A, B and C can fill a tank in t, (t+12) & (t-12) hours respectively. Pipe A opened for d hours in the tank and after that B and C also opene...
Pipe ‘A’ and pipe ‘B’ can fill a cistern in 10 minutes and 12 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If a...
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 ‘A’ can fill a tank in 25 hours while pipe ‘B’ can empty it in 30 hours. They were operated on alternate hours starting with pipe ‘A’. ...
Two pipes can alone independently fill a bucket in 10 and 12 minutes. Both are opened together for 3 minutes after which the second pipe is turned off. ...
Inlet pipes 'A', 'B' fill a tank in 30 and 15 minutes respectively. Outlet pipe 'C' is 50% less efficient than A. ‘A’ and ‘C’ work for 15 minute...
Pipe ‘A’ and pipe ‘B’ can fill a cistern in 20 minutes and 18 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If a...
