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" );
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document.write( "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?\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<BR>\n" );
document.write( "they worked for 4 hours<BR>\n" );
document.write( "so they completed 4/12 of the job = 1/3 of the job\r<BR>\n" );
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document.write( "balance job = 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 (1/3)/(1/18) hours\r<BR>\n" );
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document.write( "(1/3) *18\r<BR>\n" );
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document.write( "6 hours\r<BR>\n" );
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document.write( "Edward will take 6 hours to complete the job\r<BR>\n" );
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document.write( " </SPAN>\n" );
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