document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=258220>Question 258220</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car takes 2 hours to travel between two cities.  If the average speed decreases 20km/hr it will take 30 minutes more.  What is the distance between the two cities.\r<BR>\n" );
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document.write( "Appreciate your help.\r<BR>\n" );
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document.write( "With thanks\r<BR>\n" );
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document.write( "Ingrid </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #190074 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=190074\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A car takes 2 hours to travel between two cities. If the average speed decreases 20km/hr it will take 30 minutes more. What is the distance between the two cities. <BR>\n" );
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document.write( "Original DATA:<BR>\n" );
document.write( "time = 2 hrs. ; distance = x km ; rate = d/t = x/2 kph<BR>\n" );
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document.write( "New DATA:<BR>\n" );
document.write( "time = 2.5 hrs ; distance = x km ; rate = d/t == x/2.5 kph<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "original speed - new speed = 20 kph<BR>\n" );
document.write( "(x/2) - (x/2.5) = 20<BR>\n" );
document.write( "(2.5x - 2x)/(2*2.5) = 20<BR>\n" );
document.write( "0.5x = 100<BR>\n" );
document.write( "x = 200 km (distance between the two cities.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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