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    Question

    A person goes 15 km at 5 km/h and returns 15 km at 3

    km/h. Find the average speed for the whole journey.
    A 2.65 km/h Correct Answer Incorrect Answer
    B 3.75 km/h Correct Answer Incorrect Answer
    C 9.66 km/h Correct Answer Incorrect Answer
    D 13.33 km/h Correct Answer Incorrect Answer

    Solution

    ATQ, Total distance = 15 + 15 = 30 km Time going = 15/5 = 3 h Time returning = 15/3 = 5 h Total time = 8 h Average speed = 30/8 = 3.75 km/h

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