Mathematics, 10.07.2019 09:30 ayoismeisalex

The first train leaves a station at a speed of 72 mph. the second train leaves the same station 1 hour later and follows the same route at a faster rate of 90 mph. in how many hours will the second train catch up with the first?

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The first train leaves a station at a speed of 72 mph. the second train leaves the same station 1 ho...

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