document.write( "Question 11429: A passenger train and a freight train start at the same point at the same time and travel in opposite directions. The passenger train travels twice as fast as the freight train. In 4 hours they are 396 miles apart. What is the rate of each train \n" ); document.write( "
Algebra.Com's Answer #5929 by askmemath(368)![]() ![]() ![]() You can put this solution on YOUR website! Let the speed of the 1st train = X \n" ); document.write( "Then speed of second = 2X \n" ); document.write( "Each travels for 4 hours \n" ); document.write( "So distance covered by each = 4X+8X = 12X \n" ); document.write( "But this is given as 396 \n" ); document.write( "So 12X = 396 \n" ); document.write( "X = 396/12 = 35.5mph \n" ); document.write( "Speed of the second train = 2 x 35.5 = 71mph \n" ); document.write( " |