SOLUTION: A tank can be filled by a pipe in 2.0 h and emptied by another pipe in 3.0h. How much time will be required to fill an empty tank if both are running?
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Question 1152897: A tank can be filled by a pipe in 2.0 h and emptied by another pipe in 3.0h. How much time will be required to fill an empty tank if both are running?
First pipe fills of the tank volume each our.
Second pipe drains of the tank volume each our.
The net inflow rate to the tank is the difference - = = of the tank volume per hour.
It means, that the tank be filled in 6 hours with two pipes working together.
