document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=701993>Question 701993</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two scientists are working on a special project. The experienced scientist can complete the project in 2 hours less than the other scientist. Together they were able to complete the job in 2.4 hours. How long would it take the experienced scientist to do the job alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #432714 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=432714\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two scientists are working on a special project. The experienced scientist can complete the project in 2 hours less than the other scientist. Together they were able to complete the job in 2.4 hours. How long would it take the experienced scientist to do the job alone?<BR>\n" );
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document.write( "Experienced rate: 1/(x-2) job/hr<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Less-experienced rate: 1/x job/hr<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Together rate: 1/2.4 job/hr<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/x + 1/(x-2) = 1/2.4<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "2.4(x-2) + 2.4x = x(x-2)<BR>\n" );
document.write( "2.4x - 4.8 + 2.4x = x^2-2x<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "x^2 - 6.8x + 4.8 = 0<BR>\n" );
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document.write( "Usable solution : x = 6<BR>\n" );
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document.write( "Answer: x-2 = 4 hrs (Time for the experienced scientist)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );