document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1195317>Question 1195317</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Zheng went to the park traveling 6 mph and returned home traveling 4 mph. If the total trip took 5 hours, how long did Zheng travel at each speed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #827792 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13202)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=827792\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "If a formal algebraic solution is required, then you can set the problem up something like what is shown in the response from tutor @josgarithmetic.<br><BR>\n" );
document.write( "But if formal algebra is not needed, a quick mental solution like the one shown in the response from tutor @ikleyn can be used.<br><BR>\n" );
document.write( "(A further note about that.... Solving the problem mentally gives you more good brain exercise than using formal algebra.)<br><BR>\n" );
document.write( "Following is a solution method essentially the same as the one from tutor @ikleyn, presented a bit differently, which might (or might not) be easier to understand.<br><BR>\n" );
document.write( "The distances are the same, so if the ratio of speeds is A:B then the ratio of times is B:A.<br><BR>\n" );
document.write( "The ratio of the two speeds is 6:4 = 3:2, so the ratio of times is 2:3.<BR>\n" );
document.write( "A total of 5 hours divided into two parts in the ratio 2:3 is obviously 2 hours and 3 hours.  So he traveled for 2 hours at the higher speed an 3 hours at the lower speed.<br><BR>\n" );
document.write( "ANSWER: 2 hours at 6mph; 3 hours at 4mph<br><BR>\n" );
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