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A person travels the total distance in two parts in the ratio 2: 1 with a constant speed of 30 km/h in the first part and 40 km/h in the second part. What is the average speed of the journey? |
| Answer» A person travels the total distance in two parts in the ratio 2: 1 with a constant speed of 30 km/h in the first part and 40 km/h in the second part. What is the average speed of the journey? | |