Mathematics, 07.12.2020 18:50 ymuttmutt7628
20. A train traveled 240 kilometers at a certain speed. When the engine was replaced by an improved
model, the speed was increased by 20 km/h and the travel time for the trip was decreased by 1 hour.
What was the rate of each engine?
Answers: 2
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20. A train traveled 240 kilometers at a certain speed. When the engine was replaced by an improved...
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