document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=932995>Question 932995</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The road from village A to village B first goes uphill and then downhill. A bus moves uphill always at a speed of 30km/h and downhill always at a speed of 60km/h. Find the distance between A and B if a round trip from A to B and back without intermediate stops takes 4 hours. *Hint: Using more than one variable might help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #566569 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=566569\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The road from village A to village B first goes uphill and then downhill.<BR>\n" );
document.write( " A bus moves uphill always at a speed of 30km/h and downhill always at a speed of 60km/h.<BR>\n" );
document.write( " Find the distance between A and B if a round trip from A to B and back without intermediate stops takes 4 hours.<BR>\n" );
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document.write( "Let d = distance traveled at 30 there and back<BR>\n" );
document.write( "also<BR>\n" );
document.write( "Let d = distance traveled at 60 there and back\r<BR>\n" );
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document.write( "Write time equation, time = dist/speed<BR>\n" );
document.write( "time uphill + time down hill = 4<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F30 ALIGN=MIDDLE  ALT=\"d%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F60 ALIGN=MIDDLE  ALT=\"d%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 4<BR>\n" );
document.write( "multiply by 60, cancel the denominators and you have<BR>\n" );
document.write( "2d + d = 60(4)<BR>\n" );
document.write( "3d = 240<BR>\n" );
document.write( "d = 240/3<BR>\n" );
document.write( "d = 80 km from A to B\r<BR>\n" );
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document.write( " </SPAN>\n" );
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