document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=25175>Question 25175</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A man made a motor trip of 220 mile in 5 hours.  Part of the time he averaged 30 mph and part of the time he averaged 50 mph. How many hours did he travel at each rate </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #13512 by </B><A HREF=/tutors/aboutme.mpl?userid=Paul><B>Paul(988)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Paul><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=13512\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Total duration ar 30mph = 30(5-x) <BR>\n" );
document.write( "Total duration at 50mph = 50x<BR>\n" );
document.write( "50x+30(5-x)=220<BR>\n" );
document.write( "50x-30x+150=220<BR>\n" );
document.write( "20x=70<BR>\n" );
document.write( "x=3.5\r<BR>\n" );
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document.write( "Total duration at 50mph = 50(5-x)<BR>\n" );
document.write( "Total duration at 30mph = 30x<BR>\n" );
document.write( "30x+50(5-x)=220<BR>\n" );
document.write( "30x+250-50x=220<BR>\n" );
document.write( "-20x=-30<BR>\n" );
document.write( "x=1.5\r<BR>\n" );
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document.write( "Hence for 30mph the duration was for 3.5h and for 50mph the duration was for about 1.5h<BR>\n" );
document.write( "Paul.<BR>\n" );
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