document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=268325>Question 268325</A>: <I><SPAN STYLE=\"word-break: break-all;\"> With the wind a jet can fly 2500km in 2 hours 30 min. Against the wind, it can fly only 2000km in the same time. Find the rate of the jet in still air and the rate of the wind.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #196661 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=196661\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> With the wind a jet can fly 2500km in 2 hours 30 min.<BR>\n" );
document.write( "With wind DATA: <BR>\n" );
document.write( "distance = 2500 km ; time = 2.5 hrs ; rate = 2500/2.5 = 100 kmh<BR>\n" );
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document.write( "Against the wind, it can fly only 2000km in the same time.<BR>\n" );
document.write( "Against wind DATA:<BR>\n" );
document.write( "distance = 2000 km ; time = 2.5 hrs ; rate = 2000/2.5 = 800 kmh<BR>\n" );
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document.write( "Find the rate of the jet in still air and the rate of the wind.<BR>\n" );
document.write( "p + w = 100<BR>\n" );
document.write( "p - w = 80<BR>\n" );
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document.write( "2p = 180<BR>\n" );
document.write( "p = 90 kmh (plane speed in still air)<BR>\n" );
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document.write( "Since p+w = 100, w = 10 kmh (wind speed)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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