SOLUTION: A loaded moving truck is traveling 15 mph faster than a freight train. In the time it takes the train to travel 135 miles, the truck travels 180 miles. Find the speed of the truck.

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Question 463028: A loaded moving truck is traveling 15 mph faster than a freight train. In the time it takes the train to travel 135 miles, the truck travels 180 miles. Find the speed of the truck.
Answer by lwsshak3(11628) About Me  (Show Source):
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A loaded moving truck is traveling 15 mph faster than a freight train. In the time it takes the train to travel 135 miles, the truck travels 180 miles. Find the speed of the truck.
...
let x=speed of truck
x-15 speed of freight train
time of travel=distance/speed
180/x=135/(x-15)
180x-2700=135x
45x=2700
x=60
ans:
speed of truck=60 mph