document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1111475>Question 1111475</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One company can clear a parcel of land in 25 hours. Another company requires 30 hours to do the job. If both are hired, how long with it take to clear the parcel working together?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #726489 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=726489\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> One company can clear a parcel of land in 25 hours. Another company requires 30 hours to do the job. If both are hired, how long with it take to clear the parcel working together? <BR>\n" );
document.write( "1st company DATA:<BR>\n" );
document.write( "time = 25 hr/job ; rate = 1/25 job/hr<BR>\n" );
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document.write( "2nd company DATA:<BR>\n" );
document.write( "time = 30 hr/job ; rate = 1/30 job/hr<BR>\n" );
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document.write( "together DATA:<BR>\n" );
document.write( "rate = (1/25)+(1/30) = (30+25)/(25*30) = 55/(25*30) = 11/150 job/hr<BR>\n" );
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document.write( "Ans: time to do the job together = 150/11 = 13.64 hrs/job = 13 hr + 38 min<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );