document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1030394>Question 1030394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two planes just took off from St. Louis, MO.  The first plane is traveling 3 times as fast as the second plane.  After traveling in the same direction for 3 hours, they are 546 miles apart.  What is the average speed of each plane?  (Hint:  Since they are traveling in the same direction, the distance between them will be the difference of their distances.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #645239 by </B><A HREF=/tutors/aboutme.mpl?userid=dkppathak><B>dkppathak(439)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dkppathak><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=dkppathak><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=645239\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two planes just took off from St. Louis, MO.  The first plane is traveling 3 times as fast as the second plane.  After traveling in the same direction for 3 hours, they are 546 miles apart.  What is the average speed of each plane?  \r<BR>\n" );
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document.write( "let speed of first plan is x km  per hours  others speed will be 3x km per hours \r<BR>\n" );
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document.write( "relative speed of both plan (same direction )=3x-x=2x<BR>\n" );
document.write( "distance=speed x time<BR>\n" );
document.write( "546=2x<BR>\n" );
document.write( "x=546/2 =273 kmph <BR>\n" );
document.write( "other will be 273x3= 819 kmph<BR>\n" );
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