document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1162637>Question 1162637</A>: <I><SPAN STYLE=\"word-break: break-all;\"> there are 3 kids in a family . anna ,peter and maria .anna can clean the house fpor 1 hour ,peter can do the same job for 3 hours and maria nees 6 hours .how much time do they  need to work to finish the same cleaning if they do it altogether? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #786463 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=786463\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Their combined speed is  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F1%2B1%2F3%2B1%2F6=6%2F6%2B2%2F6%2B1%2F6=9%2F6=3%2F2 ALIGN=MIDDLE  ALT=\"1%2F1%2B1%2F3%2B1%2F6=6%2F6%2B2%2F6%2B1%2F6=9%2F6=3%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=jobs%2Fhours ALIGN=MIDDLE  ALT=\"jobs%2Fhours\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Reciprocal of that is  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3 ALIGN=MIDDLE  ALT=\"2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > HOURS for ONE JOB; or in this example,   40 minutes. </SPAN>\n" );
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