document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=835504>Question 835504</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tom and Harry take 3 hours to fill a hole. Harry and Jack would take 4 hours to fill the same hole, but Jack and Tom would take 6 hours to fill the hole. How long would it take Jack to fill the hole on his own? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #503568 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=503568\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/t+1/h=1/3,<BR>\n" );
document.write( "1/h+1/j=1/4,<BR>\n" );
document.write( "1/j+1/t=1/6\r<BR>\n" );
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document.write( "1/t+1/h=4/12,<BR>\n" );
document.write( "1/h+1/j=3/12,<BR>\n" );
document.write( "subtract<BR>\n" );
document.write( "1/t-1/j=1/12<BR>\n" );
document.write( "1/j+1/t=2/12<BR>\n" );
document.write( "add<BR>\n" );
document.write( "2/t=3/12<BR>\n" );
document.write( "2/t=1/4<BR>\n" );
document.write( "t=8<BR>\n" );
document.write( "1/j+1/8=1/6<BR>\n" );
document.write( "1/j+3/24=4/24<BR>\n" );
document.write( "1/j=1/24<BR>\n" );
document.write( "j=24\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );