document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=965150>Question 965150</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An airplane takes 3.6 hours to fly 1800 miles against the wind. It only takes the plane 3 hours to return 1800 miles with the wind. Assuming that the plane flies at a constant speed, how long will it take it to fly 3300 miles when there is no wind? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #589883 by </B><A HREF=/tutors/aboutme.mpl?userid=amarjeeth123><B>amarjeeth123(569)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=amarjeeth123><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=589883\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the speed of the airplane be x mph<BR>\n" );
document.write( "Let the speed of the wind be y mph<BR>\n" );
document.write( "Speed=Distance/Time<BR>\n" );
document.write( "When it is flying against the wind,<BR>\n" );
document.write( "x-y=1800/3.6=500.........equation 1<BR>\n" );
document.write( "When it flies with the wind,<BR>\n" );
document.write( "x+y=1800/3=600..........equation 2<BR>\n" );
document.write( "Adding equations 1 and 2 we get,<BR>\n" );
document.write( "x+y+x-y=500+600<BR>\n" );
document.write( "2x=1100<BR>\n" );
document.write( "x=550 mph<BR>\n" );
document.write( "y=50 mph<BR>\n" );
document.write( "The speed of the plane is 550 mph.<BR>\n" );
document.write( "Time taken to fly 3300 miles without the wind=Distance/Speed=3300/550=6 hours<BR>\n" );
document.write( "Answer=6 hours </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );