SOLUTION: The speed of a freight train is 20 mph slower than the speed of passenger train. The freight train travels 240 miles in the same time it takes to travel 320 miles. Find the speed o

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Question 384142: The speed of a freight train is 20 mph slower than the speed of passenger train. The freight train travels 240 miles in the same time it takes to travel 320 miles. Find the speed of each train.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
The speed of a freight train is 20 mph slower than the speed of passenger train.
The freight train travels 240 miles in the same time it takes to travel 320 miles.
Find the speed of each train.
:
Let s = speed of the pass train
then
(s-20) = speed of the freight
:
Write a time equation; time = dist/speed
:
320%2Fs = 240%2F%28%28s-20%29%29
:
Cross multiply and solve for s