document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=267543>Question 267543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A plane can fly 1200 miles with the wind in 3 hours, while it takes the same plane 4 hours to fly the same distance against the wind. Find the speed of the plane in still air and the speed of the wind. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #196312 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=196312\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A plane can fly 1200 miles with the wind in 3 hours, while it takes the same plane 4 hours to fly the same distance against the wind. Find the speed of the plane in still air and the speed of the wind.<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "1200 miles in 3 hr --> 400 mph<BR>\n" );
document.write( "1200 miles in 4 hr --> 300 mph<BR>\n" );
document.write( "The airspeed is the average, 350 mph.<BR>\n" );
document.write( "The windspeed is the difference, 50 mph.<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "The \"speed in still air\" is called airspeed.<BR>\n" );
document.write( "The 400 mph downwind and the 300 mph upwind are called ground speed.<BR>\n" );
document.write( "PS  Airplanes use knots, not mph.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );