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A car moving on a straight road covers one third of the distance with a speed of 20 km/hr and the rest with the speed of 60km/hr . The average speed of car is (1)40 km /hr (2)50 km/hr (3)36km/hr (4)55km/hr |
| Answer» A car moving on a straight road covers one third of the distance with a speed of 20 km/hr and the rest with the speed of 60km/hr . The average speed of car is (1)40 km /hr (2)50 km/hr (3)36km/hr (4)55km/hr | |