document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=439419>Question 439419</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A swimming pool holds 540,000 liters of water. THe pool has two drainage pipes. When the pool is completely full, the first pipe alone can empty it in 180 min, and the second pipe alone can empty it in 120 min. When both pipes are draining together, how long does it take them to empty the pool? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #303674 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=303674\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Pipe A  	3	hours				<BR>\n" );
document.write( "It does 	  1/ 3	of the job in 1 	hour			<BR>\n" );
document.write( "Pipe B 	2	hours				<BR>\n" );
document.write( "It does 	  1/ 2	of thejob in 1 	hour			<BR>\n" );
document.write( "Together they will do   1/ 3 +  1/ 2	<BR>\n" );
document.write( "Together they will do   5/ 6 of the job in one 	hour<BR>\n" );
document.write( "So they will take 1 1/5	hours		<BR>\n" );
document.write( "So they will take 1.2	hours	= 72 minutes		<BR>\n" );
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