The train in 2 hours 30 min. passed distance, less than 200 km. estimate the speed of the movement of the train

200
2ch30min =2.5ch. 200/2.5=80км/ч

2ch30min =2.5 of hour

of 200:2.5=80 (km/h) - train speed if it passed 200 km would be

, and so its speed was less 80km/hour

232
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