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The correct answer is C
Pipe L can empty the tank which is 45% filled in 9 hours. The time taken by pipe K and J together to fill an empty tank completely in 7.5 hours. Pipe J ...
A pipe fills a tank in 20 hours, and another pipe empties it in 30 hours. If both pipes are opened together, how long will it take to fill the tank?
Two pipes A and B can fill a tank in 24 minutes and 30 minutes respectively, while a third pipe C can empty it in 40 minutes. If all three pipes are ope...
Tap A can fill a tank in 20 hours and tap B can emptied it is 25 hours. Tap A starts filling and they opened for 1 hour each alternatively in what time ...
Pipe A and Pipe B together can fill the tank in 15 hours. The capacity of the pipe A is 30% of the capacity of the pipe B. How much time will pipe B alo...
Pipe P can fill a tank in 12 hours, while pipe Q can fill the same tank in 20 hours. Both pipes are initially opened to fill an empty tank, but after 5 ...
Pipe ‘A’ and pipe ‘B’, together can fill 20% of a tank in 7 hours while pipe ‘C’ takes 40 hours to empty it. ...
Two pipes A and B can fill a tank in 12 min., and 16 min, respectively. If both the pipes are opened simultaneously, after how much time A should be cl...
Pipe 'X' takes 50 minutes to fill the tank by itself, while Pipe 'Y' can fill it in 30 minutes on its own. What is the time required for both pipes to f...
Pipe ‘A’ can fill a tank in 30 hours while pipe ‘B’ can empty it in 40 hours. They were operated on alternate hours starting with pipe ‘A’. ...
