document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=430641>Question 430641</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Three boys can paint a fence in 4 hours, 5 hours, and six hours respectively. Find how long it will take all three boys to paint the fence together. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #299039 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=299039\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Three boys can paint a fence in 4 hours, 5 hours, and six hours respectively. Find how long it will take all three boys to paint the fence together.<BR>\n" );
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document.write( "1 does 1/4 per hour<BR>\n" );
document.write( "1 does 1/5 per hour<BR>\n" );
document.write( "1 does 1/6 per hour<BR>\n" );
document.write( "Together, they do 1/4 + 1/5 + 1/6 per hour<BR>\n" );
document.write( "= 15/60 + 12/60 + 10/60 = 37/60 per hour<BR>\n" );
document.write( "--> 60/37 hours/fence<BR>\n" );
document.write( "=~ 1.62 hours\r<BR>\n" );
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