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Mathematics, 21.08.2021 01:40 gabby0148

A train goes twice as fast downhill as it cango uphill, and 2/3 as fast uphill as it can goon level ground. If it goes 120 mph downhill, how long will it take to travel 45 miles on flatland

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A train goes twice as fast downhill as it cango uphill, and 2/3 as fast uphill as it can goon level...

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