document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154714>Question 1154714</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Howard and Edward, working together, can complete a job in 12 hours.  Edward requires 18 hours to do this job alone.  Howard and Edward start the job.  After they worked for 4 hours, Howard left the job.  How many hours will Edward require to finish the job working alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #853810 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(53619)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=853810\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Howard and Edward, working together, can complete a job in 12 hours. Edward requires 18 hours to do this job alone. <BR>\n" );
document.write( "Howard and Edward start the job. After they worked for 4 hours, Howard left the job. How many hours will Edward <BR>\n" );
document.write( "require to finish the job working alone?<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The solution in the post by @mananth is incorrect.\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Below is my correct solution.\r<BR>\n" );
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document.write( "Edward requires 18 hours to do this job alone.\r<BR>\n" );
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document.write( "He does 1/18 of job in 1 hour\r<BR>\n" );
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document.write( "Howard and Edward start the job they worked for 4 hours,\r<BR>\n" );
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document.write( "They can complete the job in 12 hours\r<BR>\n" );
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document.write( "So they can do 1/12 of the job in 1 hour\r<BR>\n" );
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document.write( "they worked for 4 hours\r<BR>\n" );
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document.write( "so they completed 4/12 of the job = 1/3 of the job\r<BR>\n" );
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document.write( "The remaining job is 1-1/3 = 2/3 of the job\r<BR>\n" );
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document.write( "Edward does 1/18 of job in 1 hour\r<BR>\n" );
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document.write( "for 1/3 of the job he will take <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%282%2F3%29%29%2F%28%281%2F18%29%29 ALIGN=MIDDLE  ALT=\"%28%282%2F3%29%29%2F%28%281%2F18%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2A18%29%2F3 ALIGN=MIDDLE  ALT=\"%282%2A18%29%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%2F3 ALIGN=MIDDLE  ALT=\"36%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 12 hours.\r<BR>\n" );
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document.write( "<U>ANSWER</U>.  &nbsp;&nbsp;Edward will take 12 hours to complete the job.\r<BR>\n" );
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document.write( "Solved correctly.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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