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    Question

    A boy goes from home to school at a speed of 30 km/h and

    returns back at a speed of 70 km/h. What is his average speed for the journey?
    A 42 km/h Correct Answer Incorrect Answer
    B 48 km/h Correct Answer Incorrect Answer
    C 38 km/h Correct Answer Incorrect Answer
    D 36 km/h Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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