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    Question

    A person travels by car at 50 km/h for 3 hours, by a

    bike at 40 km /h for 2 hours, and by a train at 60km/h for 5 hours. What is the average speed at which he traveled?  
    A 36km/h Correct Answer Incorrect Answer
    B 48 km/h Correct Answer Incorrect Answer
    C 53km/h Correct Answer Incorrect Answer
    D 33km/h Correct Answer Incorrect Answer

    Solution

    Distances: Car =50 km/h × 3 hours = 150 km Bike = 40 km/h × 2 hours = 80 km Train = 60 km/h × 5 hours = 300 km Total Distance =150 km + 80 km + 300 km   = 530 km Total Time = 3 hours + 2 hours + 5 hours = 10 hours   Average Speed = 530 km /10 hours =53 km/h

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