document.write( "Question 841581: Pipes A,B,C are connected to a swimming pool. Pipe A fills an empty pool in forty-five minutes and Pipe C empties a full pool in thirty minutes.Pipe B fills the pool. If all three pipes are left open then it takes them thirty minutes to fill an empty pool. How long would it take Pipe B alone to fill an empty pool ? \n" ); document.write( "

Algebra.Com's Answer #507037 by richwmiller(17219) $\"\"$ $\"About$

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1/45+1/b-1/30=1/30
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\n" ); document.write( "1/45+1/b=3/45
\n" ); document.write( "1/b=2/45
\n" ); document.write( "b=45/2= 22.5 minutes to fill the pool alone\r
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