document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=962234>Question 962234</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If my friend has to paint a room for 1 hour .<BR>\n" );
document.write( "And if i have to paint the same size of room<BR>\n" );
document.write( "it will take 2 hours . How long we have to<BR>\n" );
document.write( "paint the room if we are to paint it<BR>\n" );
document.write( "together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #587838 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=587838\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If my friend has to paint a room for 1 hour .<BR>\n" );
document.write( "And if i have to paint the same size of room<BR>\n" );
document.write( "it will take 2 hours . How long we have to<BR>\n" );
document.write( "paint the room if we are to paint it<BR>\n" );
document.write( "together?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "my friend has to paint a room for 1 hour<BR>\n" );
document.write( "his work rate=1/1=1<BR>\n" );
document.write( "I can paint a room in 2 hours<BR>\n" );
document.write( "my work rate=1/2<BR>\n" );
document.write( "together we can paint the room in x hours<BR>\n" );
document.write( "our work rate=1/x<BR>\n" );
document.write( "..<BR>\n" );
document.write( "sum of indv. work rates= work rate working together<BR>\n" );
document.write( "1+1/2=1/x<BR>\n" );
document.write( "3/2=1/x<BR>\n" );
document.write( "x=2/3<BR>\n" );
document.write( "How long we have to<BR>\n" );
document.write( "paint the room if we are to paint it<BR>\n" );
document.write( "together? 2/3 hr or 40 min </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );