document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=910501>Question 910501</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A vat is filled by 2 taps. One tap can fill the vat in 20 mins. the other tap can fill the vat in 10 min. how long will it take the 2 taps to fill the vat? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #552528 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=552528\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/a+1/b=1/x<BR>\n" );
document.write( "1/20+1/10=1/x<BR>\n" );
document.write( "10/200+20/200=1/x<BR>\n" );
document.write( "30/200=1/x<BR>\n" );
document.write( "x=200/30<BR>\n" );
document.write( "x=6.66666667 minutes working together<BR>\n" );
document.write( "check<BR>\n" );
document.write( "x/a+x/b=1<BR>\n" );
document.write( "x/20+x/10=1<BR>\n" );
document.write( "6.66666667/20+6.66666667/10=1<BR>\n" );
document.write( "0.33333333+0.66666667=1<BR>\n" );
document.write( "1.0=1<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );