Question

    A person travels between three towns as follows:

    type="disc"> From Town X to Town Y, he covers 120 km at 60 km/h. From Town Y to Town Z, he covers 150 km at 75 km/h. On the return trip: From Town Z to Town Y, he travels at 50 km/h. From Town Y to Town X, he travels at 40 km/h. What is the average speed for the entire journey? 50 km/h
    A 52 km/h Correct Answer Incorrect Answer
    B 54 km/h Correct Answer Incorrect Answer
    C 56 km/h Correct Answer Incorrect Answer
    D 60 km/h Correct Answer Incorrect Answer
    E 50 km/h Correct Answer Incorrect Answer

    Solution

    Time taken by person from town X to town Y = 120/60 = 2 hours Time taken by person from town Y to town Z = 150/75 = 2 hours Time taken by person from town Z to town Y = 150/50 = 3 hours Time taken by person from town Y to town X = 120/40 = 3 hours

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