document.write( "Question 595868: A train travels half the distance from 30 km/hr and the remaining half with 60km/hr. What is it's average speed ?
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Algebra.Com's Answer #377379 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A train travels half the distance from 30 km/hr and the remaining half with 60km/hr. What is it's average speed ? \n" ); document.write( "---------- \n" ); document.write( "Avg = 2*30*60/(30+60) = 3600/90 \n" ); document.write( "Avg = 40 km/hr \n" ); document.write( "================ \n" ); document.write( "This formula applies only if the distances are equal. \n" ); document.write( " \n" ); document.write( " |