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 ?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #377379 by Alan3354(69443)\"\" \"About 
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( "
\n" );