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A tank is filled by two pipes P and Q. If P takes2 hrs more than Q to fill the tank alone and P and7Q together fill the tank in 1hrs, then find the8time taken by P and Q alone to fill the tank.

Answer» A tank is filled by two pipes P and Q. If P takes2 hrs more than Q to fill the tank alone and P and7Q together fill the tank in 1hrs, then find the8time taken by P and Q alone to fill the tank.


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