SOLUTION: A freight train and a passenger train leave a rail yard at the same time and travel on a parallel tracks. The passenger train travels 35 km per hour faster than the freight train.

Algebra ->  Equations -> SOLUTION: A freight train and a passenger train leave a rail yard at the same time and travel on a parallel tracks. The passenger train travels 35 km per hour faster than the freight train.       Log On


   

Question 1081357: A freight train and a passenger train leave a rail yard at the same time and travel on a parallel tracks. The passenger train travels 35 km per hour faster than the freight train. The combined distance traveled after 3 hours is 705 km. What is the average speed of each train?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x, the speed of the freight train
x+35, speed of passenger train

3x%2B3%28x%2B35%29=705
-

6x%2B105=705
6x=600
highlight%28x=100%29

Passenger train's speed is 135 km/hour