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| 1. |
A train travels from one station to another at a speed of 40 km/hour and returns to the first station at a speed of 60 km/hour. The average speed of the train is how many? |
| Answer» A train travels from one station to another at a speed of 40 km/hour and returns to the first station at a speed of 60 km/hour. The average speed of the train is how many? | |