document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=653004>Question 653004</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Together Bill and Fred working at the same rate rake a yard in an hour and a half. If three of their friends had joined them at the start and also worked at the rate, it would have taken them ___ minutes for the five of them to rake the yard.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #408342 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=408342\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Together Bill and Fred working at the same rate rake a yard in an hour and a half.<BR>\n" );
document.write( " If three of their friends had joined them at the start and also worked at<BR>\n" );
document.write( " the rate, it would have taken them ___ minutes for the five of them to<BR>\n" );
document.write( " rake the yard.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "let the completed job = 1<BR>\n" );
document.write( "Find the rate (r) using Bill and Fred <BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.5%2Fr ALIGN=MIDDLE  ALT=\"1.5%2Fr\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.5%2Fr ALIGN=MIDDLE  ALT=\"1.5%2Fr\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "Multiply by r<BR>\n" );
document.write( "1.5 + 1.5 = r<BR>\n" );
document.write( "r = 3 hrs for one man to do the job<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let t = time required for 5 to do it<BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F3 ALIGN=MIDDLE  ALT=\"t%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F3 ALIGN=MIDDLE  ALT=\"t%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F3 ALIGN=MIDDLE  ALT=\"t%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F3 ALIGN=MIDDLE  ALT=\"t%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F3 ALIGN=MIDDLE  ALT=\"t%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%285t%29%2F3 ALIGN=MIDDLE  ALT=\"%285t%29%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "5t = 3<BR>\n" );
document.write( "t = 3/5 * 60 min = 36 min when all 5 do the job<BR>\n" );
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