document.write( "Question 1124070: To get from A to B, the train average 140 MPH, on the way back it averages 110 MPH. The total roundtrip took 6 hours, how long did it take to go from A to B? \n" ); document.write( "
Algebra.Com's Answer #741682 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Here is a completely different way to solve the problem than shown by the other tutor. \n" ); document.write( "The ratio of speeds going and returning is 140:110 = 14:11. \n" ); document.write( "Since the distances are the same, the ratio of times is 11:14. \n" ); document.write( "So the amount of time going from A to B is 11/25 of the total of 6 hours: \n" ); document.write( "6*(11/25) = 66/25 hours. \n" ); document.write( "Try both methods and see what works best for you. \n" ); document.write( "Better yet, think about other ways to solve the problem and see if you find a way that is even easier for you. \n" ); document.write( " |