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    Question

    A train travels from Station A to Station B at a speed

    of 60 km/h and returns from Station B to Station A at a speed of 40 km/h. If the distance between the two stations is 120 km, find the average speed of the train for the entire journey.
    A 48 km/h Correct Answer Incorrect Answer
    B 50 km/h Correct Answer Incorrect Answer
    C 52 km/h Correct Answer Incorrect Answer
    D 54 km/h Correct Answer Incorrect Answer
    E None Correct Answer Incorrect Answer

    Solution

    Let the distance between the two stations be 120 km. Time taken to travel from A to B = 120/60 = 2 hours. Time taken to travel from B to A = 120/40 = 3 hours. Total time taken for the round trip = 2 + 3 = 5 hours. Total distance traveled = 120 + 120 = 240 km. Average speed = 240/5 = 48 km/h.

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