Question

    A car travels at a speed of 40 km/h for 15 minutes and

    at a speed of 72 km/h for the next 5 minutes. The average speed of the car for the whole journey is:
    A 43 km/h Correct Answer Incorrect Answer
    B 41 km/h Correct Answer Incorrect Answer
    C 45 km/h Correct Answer Incorrect Answer
    D 48 km/h Correct Answer Incorrect Answer

    Solution

    The correct answer is D

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