document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=98385>Question 98385</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jack and Jill can wash a carpet together in 1 hour and 30 minutes. Washing alone, it takes Jill 2 hours and 10 minutes to get the carpet clean. How long does it take Jack to wash the carpet by himself? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #71531 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=71531\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Jack and Jill can wash a carpet together in 1 hour and 30 minutes. Washing alone, it takes Jill 2 hours and 10 minutes to get the carpet clean. How long does it take Jack to wash the carpet by himself?<BR>\n" );
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document.write( "Together DATA;<BR>\n" );
document.write( "Time = 90 minutes/job ; Rate = 1/90 job/min<BR>\n" );
document.write( "------------------------------<BR>\n" );
document.write( "Jill DATA:<BR>\n" );
document.write( "Time = 130 min/job ; Rate = 1/130 job/min<BR>\n" );
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document.write( "Jack DATA;<BR>\n" );
document.write( "Time = x min/job ; Rate = 1/x job/min<BR>\n" );
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document.write( "EQUATION:<BR>\n" );
document.write( "Jill rate + Jack Rate = Together Rate<BR>\n" );
document.write( "1/130 + 1/x = 1/90<BR>\n" );
document.write( "(x+130)/130x = 1/90<BR>\n" );
document.write( "130x = 90(x+130)<BR>\n" );
document.write( "130x = 90x + 90*130<BR>\n" );
document.write( "40x = 90*130<BR>\n" );
document.write( "x = 292.5 minutes (Time it would take Jack to do the job)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );