A car is moving on a straight road covers one third of the total distance with speed 25 km/h and rest with speed of 50 km/h. The average speed of the car is (1) 40 km/h (2) 20 km/h (3) 37.5 km/h (4) 42.5 km/h
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(3)37.5 is the answer of this Q
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(C) 37.5km/h is the correct answer of this question
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