SOLUTION: A swimming pool can be filled in 6 hours and requires 9 hours to drain. If the drain was accidentally left open for 6 hours while the pool was being filled, how long did filling th
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Question 357840: A swimming pool can be filled in 6 hours and requires 9 hours to drain. If the drain was accidentally left open for 6 hours while the pool was being filled, how long did filling the pool require?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rate*Time=Output
Let the pool volume be V.
Find the filling rate.
Find the draining rate.
Find the volume in the pool for 6 hours with both valves open.
The pool is now () full.
Find the time it takes to fill the remaining .
hrs.
The total time to fill the pool is the sum of the two times.
hrs
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