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A car moves with a speed of 30 km/h^–1 for half an hour, 25 km/h^–1 for one hour and 40 km/h^–1 for two hours. Calculate the average speed of the car. |
| Answer» A car moves with a speed of 30 km/h^–1 for half an hour, 25 km/h^–1 for one hour and 40 km/h^–1 for two hours. Calculate the average speed of the car. | |