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    Question

    Sneha rides her bike from town P to town Q at 45 km/h and

    comes back at 55 km/h. Find the average speed of the round trip.
    A 54 km Correct Answer Incorrect Answer
    B 49.5 km Correct Answer Incorrect Answer
    C 65 km Correct Answer Incorrect Answer
    D 78.8 km Correct Answer Incorrect Answer

    Solution

    ATQ,

    Average speed = (2 × 45 × 55) ÷ (45 + 55) = 4950 ÷ 100 = 49.5 km/h

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