document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=515225>Question 515225</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A plane flying against the wind flew 480 miles in 4 hours. The return trip, with the wind, only took 3 hours. Find the speed of the plane 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 #343869 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=343869\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 480/4 = 120 mi/hr<BR>\n" );
document.write( "480/3 = 160 mi/hr<BR>\n" );
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document.write( "The plane's airspeed is the average, (120+160)/2 = 140 mi/hr<BR>\n" );
document.write( "The windspeed is the difference = 20 mi/hr </SPAN>\n" );
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