SOLUTION: A refinery tank has one fill pipe and two drain pipes. Pipe 1 can fill the tank in 3 hr. Pipe 2 takes 6 hr or longer to drain the tank pipe than pipe 3 does. If it takes 12 hr to f

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A refinery tank has one fill pipe and two drain pipes. Pipe 1 can fill the tank in 3 hr. Pipe 2 takes 6 hr or longer to drain the tank pipe than pipe 3 does. If it takes 12 hr to f      Log On


   

Question 95753This question is from textbook
: A refinery tank has one fill pipe and two drain pipes. Pipe 1 can fill the tank in 3 hr. Pipe 2 takes 6 hr or longer to drain the tank pipe than pipe 3 does. If it takes 12 hr to fill the tank when the valves of all three pipes are open, how long does it take pipe 3, alone, to drain the tank? This question is from textbook

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