document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1041146>Question 1041146</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ralph can lay down a floor tile in 5 seconds. Bob can lay down a floor tile in 4 seconds. If both boys work together, how many seconds would it take them to install 450 floor tiles? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #656074 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=656074\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Ralph can lay down a floor tile in 5 seconds. Bob can lay down a floor tile in 4 seconds. If both boys work together, how many seconds would it take them to install 450 floor tiles? <BR>\n" );
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document.write( "Ralph rate:: 1/5 tile/sec<BR>\n" );
document.write( "Bob rate:: 1/4 tile/sec<BR>\n" );
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document.write( "Together rate = (1/5) + (1/4) = 9/20 tile/sec<BR>\n" );
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document.write( "Ans:: 450(9/20) = 22.5*9 = 201.6 seconds<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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