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    Question

    Ravi drives from city X to city Y at a speed of 40 km/h

    and returns at a speed of 60 km/h. What is his average speed for the whole journey?
    A 54 km/h Correct Answer Incorrect Answer
    B 48 km/h Correct Answer Incorrect Answer
    C 65 km/h Correct Answer Incorrect Answer
    D 78 km/h Correct Answer Incorrect Answer

    Solution

    ATQ,

    Average speed = (2 × 40 × 60) ÷ (40 + 60) = 4800 ÷ 100 = 48 km/h

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