document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1197567>Question 1197567</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An airplane averages 150 mph. If a trip from Atlanta to Charleston takes 2 hours 48 minutes going against the wind, and 2 hours on on the return flight going with the wind, what is the speed of the wind  </SPAN>\n" );
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document.write( "Here is a very unorthodox solution method -- in case you are interested in looking at alternatives.<br><BR>\n" );
document.write( "Let x be the speed of the wind; then the plane's speeds are 150+x with the wind and 150-x against the wind.<br><BR>\n" );
document.write( "The distances are the same, so the ratio of speeds is the reciprocal of the ratio of the times.  The ratio of the two times in minutes is 168/120 = 7/5.  So<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28150%2Bx%29%2F%28150-x%29=7%2F5 ALIGN=MIDDLE  ALT=\"%28150%2Bx%29%2F%28150-x%29=7%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%28150%2Bx%29=7%28150-x%29 ALIGN=MIDDLE  ALT=\"5%28150%2Bx%29=7%28150-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=750%2B5x=1050-7x ALIGN=MIDDLE  ALT=\"750%2B5x=1050-7x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12x=300 ALIGN=MIDDLE  ALT=\"12x=300\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=25 ALIGN=MIDDLE  ALT=\"x=25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWER: The wind speed is 25mph<br><BR>\n" );
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