document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=378384>Question 378384</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One pipe fills a pool in 6 hours. Second pipe can fill the same pool in 4 hours. How long would it take to fill the pool if both pipes were working. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #268841 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=268841\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> One pipe fills a pool in 6 hours. Second pipe can fill the same pool in 4 hours. How long would it take to fill the pool if both pipes were working.<BR>\n" );
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document.write( "1st pipe rate = 1/6 job/hr<BR>\n" );
document.write( "2nd pipe rate = 1/4 job/hr<BR>\n" );
document.write( "Together rate = 1/x job/hr<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/6 + 1/4 = 1/x <BR>\n" );
document.write( "2x + 3x = 12<BR>\n" );
document.write( "5x = 12<BR>\n" );
document.write( "x = 12/5 hrs = 2.4 hrs (time to fill the pool if both pipes are working)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );