document.write( "Question 230923: With water from one hose, a swimming pool can be filled in 9 hours. A second, larger hose used alone can fill the pool in 4 hours. How long would it take to fill the pool if both hoses were used simultaneously? \n" ); document.write( "

Algebra.Com's Answer #171001 by checkley77(12844) $\"\"$ $\"About$

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9*4/(9+4)=36/13=2.769 hours when both hoses are used. \n" ); document.write( "

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