document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=665701>Question 665701</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The average speed of an airplane is 10 times that of a car. It takes the airplane 18h less than the car to travel 1000km. Determine the average speeds of the air plane and the car. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #414022 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=414022\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> car speed =x\r<BR>\n" );
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document.write( "plane speed = 10x\r<BR>\n" );
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document.write( "distance =1000 km\r<BR>\n" );
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document.write( "time taken by air plane = 1000/10x\r<BR>\n" );
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document.write( "time taken by car = 1000/x\r<BR>\n" );
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document.write( "Time taken by car - time taken by  plane = 18<BR>\n" );
document.write( "1000/x - 1000/10x= 18\r<BR>\n" );
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document.write( "LCD = 10x<BR>\n" );
document.write( "multiply equation by 10x<BR>\n" );
document.write( "10000 -1000 = 18(10x)<BR>\n" );
document.write( "9000 = 180x<BR>\n" );
document.write( "/180<BR>\n" );
document.write( "x= 9000/180<BR>\n" );
document.write( "x= 50 \r<BR>\n" );
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document.write( "car speed = 50 km/h<BR>\n" );
document.write( "plane speed = 10x -> 10*50 = 500 km/h </SPAN>\n" );
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