document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=665623>Question 665623</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If one person takes four hours to paint a house and another person takes 6 hours,how long will it take both of them to paint a house together?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #413961 by </B><A HREF=/tutors/aboutme.mpl?userid=DrBeeee><B>DrBeeee(684)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=DrBeeee><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=413961\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Without a lot of explanation, I'll give you the answer to this type of problem.<BR>\n" );
document.write( "The combined effort two people that take x hrs and y hrs individually, will do the job in h hrs given by<BR>\n" );
document.write( "(1) h = 1/(1/x + 1/y)<BR>\n" );
document.write( "Applying this to your problem we get<BR>\n" );
document.write( "(2) h = 1/(1/4 + 1/6) or<BR>\n" );
document.write( "(3) h = 1/(6/24 + 4/24) or<BR>\n" );
document.write( "(4) h = 1/(10/24) or<BR>\n" );
document.write( "(5) h = 24/10 or <BR>\n" );
document.write( "(6) h = 2.4 hrs<BR>\n" );
document.write( "Answer: It will take 2hr and 24min for them to paint the house together. </SPAN>\n" );
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