document.write( "Question 402077: If you bike for 60km at 30km/h and return at 20km/h, what is your average speed for the whole trip? \n" ); document.write( "
Algebra.Com's Answer #726991 by amalm06(224)\"\" \"About 
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(1/20)(60)=3\r
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\n" ); document.write( "\n" ); document.write( "(1/30)(60)=2\r
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\n" ); document.write( "\n" ); document.write( "Average speed=(60+60)/5=24 km/hr
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