document.write( "Question 1200178: Pipe A can fill the swimming pool in 5 hours,
\n" ); document.write( "and Pipe B can fill the same swimming pool in 7 hours.
\n" ); document.write( "lf both Pipe A and Pipe B are used to fill the swimming pool at the same time,
\n" ); document.write( "how long does it take to fill the pool? \n" ); document.write( "

Algebra.Com's Answer #834222 by ikleyn(52847) $\"\"$ $\"About$

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\n" ); document.write( "Pipe A can fill the swimming pool in 5 hours,
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\n" ); document.write( "lf both Pipe A and Pipe B are used to fill the swimming pool at the same time,
\n" ); document.write( "how long does it take to fill the pool?
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document.write( "Pipe A fills 1/5 of the swimming pool volume each hour.\r\n" );
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document.write( "Pipe B fills 1/7 of the swimming pool volume each hour.\r\n" );
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document.write( "If both pipes are used at the same time, they fill\r\n" );
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document.write( "     =  =   \r\n" );
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document.write( "of the pool volume each hour.\r\n" );
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document.write( "It means that the two pipes will fill the swimming pool in \r\n" );
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document.write( "     = 2  hours = 2 hours and 55 minutes.    ANSWER\r\n" );
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