document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=391838>Question 391838</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Alan can build a brick wall in 9 hours. Carl can build the same wall in 18 hours. Mr. Alan started to build the wall, worked for 3 hours, and then stopped working. How many hours would Carl require to complete the wall? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #278000 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=278000\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Alan can build a brick wall in 9 hours.<BR>\n" );
document.write( " Carl can build the same wall in 18 hours.<BR>\n" );
document.write( " Mr. Alan started to build the wall, worked for 3 hours, and then stopped working. <BR>\n" );
document.write( "How many hours would Carl require to complete the wall?<BR>\n" );
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document.write( "Let c = no. of hrs to complete the wall by Carl<BR>\n" );
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document.write( "Let the completed wall = 1<BR>\n" );
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document.write( "Each will do a fraction of the wall, the two fractions add up to 1<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F9 ALIGN=MIDDLE  ALT=\"3%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c%2F18 ALIGN=MIDDLE  ALT=\"c%2F18\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "Multiply equation b;y 18 to clear the denominators<BR>\n" );
document.write( "2(3) + c = 18<BR>\n" );
document.write( "c = 18 - 6<BR>\n" );
document.write( "c = 12 hrs to complete the wall<BR>\n" );
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