document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=354217>Question 354217</A>: <I><SPAN STYLE=\"word-break: break-all;\"> With a tail wind, a plain flew 1740 km in 6 hours. With a head wind, it flew only 570 km in 3 hours. Find the plains air speed and the wind speed. Assume both are constant. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #253177 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=253177\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D=RT<BR>\n" );
document.write( "1740=R*6<BR>\n" );
document.write( "R=1740/6<BR>\n" );
document.write( "R=290 KMH. WITH THE TAIL WIND.<BR>\n" );
document.write( "570=R*3<BR>\n" );
document.write( "R=570/3<BR>\n" );
document.write( "R=190 KMH. AGAINST THE WIND.<BR>\n" );
document.write( "(290-190)/2=100/2=50 KMH. IS THE HEAD WIND.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "290-50=240 KMH. FOR THE RATE OF THE PLANE<BR>\n" );
document.write( "190+50=240 KMH. DITTO.<BR>\n" );
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