document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=381370>Question 381370</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When a plane flies into the wind, it can travel 3,000 km in 6 hours. When it flies with the wind, it can travel the same distance in 5 hours. Find the rate of the plane in still air and the rate 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 #270532 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=270532\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> speed of plane = p<BR>\n" );
document.write( "speed of wind = w<BR>\n" );
document.write( "..<BR>\n" );
document.write( "tail wind speed = p+w mph<BR>\n" );
document.write( "against wind speed = p-w<BR>\n" );
document.write( "..<BR>\n" );
document.write( "distance tailwind = 3000 miles<BR>\n" );
document.write( "time = 5 hours<BR>\n" );
document.write( "..<BR>\n" );
document.write( "t=d/r<BR>\n" );
document.write( "5=3000/(p+w)<BR>\n" );
document.write( "multiply by (p+w)<BR>\n" );
document.write( "5(p+w)=3000<BR>\n" );
document.write( "/5<BR>\n" );
document.write( "p+w = 600...................1<BR>\n" );
document.write( "..<BR>\n" );
document.write( "Against wind<BR>\n" );
document.write( "6=3000/(p-w)<BR>\n" );
document.write( "6(p-w)=3000<BR>\n" );
document.write( "/6<BR>\n" );
document.write( "p-w=500.....................2<BR>\n" );
document.write( "..<BR>\n" );
document.write( "add 1&2<BR>\n" );
document.write( "2p=600+500<BR>\n" );
document.write( "2p=1100<BR>\n" );
document.write( "/2<BR>\n" );
document.write( "p=550 mph<BR>\n" );
document.write( "...<BR>\n" );
document.write( "p+w = 600<BR>\n" );
document.write( "550+w=600<BR>\n" );
document.write( "w=50 mph<BR>\n" );
document.write( "..<BR>\n" );
document.write( "m.ananth@hotmail.ca\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );