Mathematics, 26.08.2020 23:01 marelinatalia2000

A train travelled from city a to city b for the first 14 hours, it travelled at an average speed of 120 km/h. for the next 10 hours it traveled at an average speed of 90 km/h what was the average speed of the whole journey?

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A train travelled from city a to city b for the first 14 hours, it travelled at an average speed of...