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1. |
A motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. Â His average speed for the whole journey in km/hr is : |
A. | 35 |
B. | 36 |
C. | 37.5 |
D. | 38.2 |
Answer» D. 38.2 | |