Mathematics, 21.01.2022 02:50 kevin2618

HEl On a given section of railway, the speed of a passenger train is 30 km / h higher than that of a freight train. At what speed (in kilometers per hour) does a passenger train run if it travels 39 km in the same time as 27 km of freight?

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HEl On a given section of railway, the speed of a passenger train is 30 km / h higher than that of...

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