document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=551806>Question 551806</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please could you help me with this word problem? My average speed for a journey was 50 mph. My return average speed was 70 mph. My average speed was NOT 60 mph. What was it? </SPAN>\n" );
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document.write( "Avg speed for a round trip is<BR>\n" );
document.write( "2*70*50/(70+50) = 7000/120 mi/hr<BR>\n" );
document.write( "= 58.333... mi/hr<BR>\n" );
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document.write( "It's less than 60 because more time is spent going 50 than going 70.<BR>\n" );
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