document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=908155>Question 908155</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Each of two brothers can wash a car in 1hr; however, their sister can wash the car in 45 min. If all three work together, how long will it take to wash the car?<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 #550906 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=550906\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a=1 b=1 c=0.75<BR>\n" );
document.write( "1/a+1/b+1/c=1/x<BR>\n" );
document.write( "1/1+1/1+1/.75=1/x<BR>\n" );
document.write( "0.75/.75+.75/.75+1/.75=1/x<BR>\n" );
document.write( "2.5/0.75=1/x<BR>\n" );
document.write( "0.75/2.5=x<BR>\n" );
document.write( "0.3 hours working together<BR>\n" );
document.write( "check<BR>\n" );
document.write( "1/a+1/b+1/c=1/x<BR>\n" );
document.write( "1/1+1/1+1/0.75=1/0.3<BR>\n" );
document.write( "0.75/0.75+0.75/0.75+1.0/0.75=1/0.3<BR>\n" );
document.write( "2.5/0.75=1/0.3<BR>\n" );
document.write( "0.75/2.5=0.3<BR>\n" );
document.write( "0.3=0.3<BR>\n" );
document.write( "ok<BR>\n" );
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