document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=426571>Question 426571</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A plane makes a 240-mile trip against a head wind in 1 hour and 30 minutes and returns, with a tail wind of the same speed, in 1 hour. What is 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 #296722 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=296722\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the speed of the plane with no wind = s<BR>\n" );
document.write( "Let the speed of the wind = v<BR>\n" );
document.write( "The speed against the wind = s - v = 240 mi/1.5 h = 160 mi/h (1)<BR>\n" );
document.write( "The speed with the wind = s + v = 240/1 h = 240 mi/h (2)<BR>\n" );
document.write( "Subtract (1) from (2):<BR>\n" );
document.write( "2v = 80 -> v = 40 mi/h.<BR>\n" );
document.write( "Ans: The speed of the wind is 40 mi/h </SPAN>\n" );
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