document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=321967>Question 321967</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A small cooler can cool room 10 degrees in 90 minutes . a larger cooler can cool the room 10 degrees in 60 minutes. how long would it take to cool the room 10 degrees  if both coolers were working ?\r<BR>\n" );
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document.write( "a  30 minutes   b  36 minutes   c   45 minutes  d  50 minutes </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #230476 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=230476\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cooling room 10 degrees is on job.<BR>\n" );
document.write( "small cooler can do the job in 90 minutes<BR>\n" );
document.write( "it will do 1/90th of the job in 1 minute<BR>\n" );
document.write( "big cooler can do  the same job in 60 minutes<BR>\n" );
document.write( "this will do 1/60th of the job in 1 minute.<BR>\n" );
document.write( "together they can do  1/60+ 1/90  of the job in 1 minute<BR>\n" );
document.write( "3+2 / 180<BR>\n" );
document.write( "= 5/180<BR>\n" );
document.write( "for 1 job they will take 180/5 minutes<BR>\n" );
document.write( "= 36 minutes </SPAN>\n" );
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