document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1144577>Question 1144577</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A motorist travels a distance of 84km. He finds that; if on the return journey he increases his average speed by 4km/h, he will take half an hour less. <BR>\n" );
document.write( "What was his average speed for the first part of the journey? <BR>\n" );
document.write( "How long did he take for the double journey?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #765731 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39623)</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=765731\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "              SPEED         TIME        DISTANCE\r\n" );
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document.write( "firstpart     r             84/r         84\r\n" );
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document.write( "secondpart    r+4          84/(r+4)      84\r\n" );
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document.write( "difference                 1/2\r\n" );
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