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    Question

    A train covers 150 km in 100 minutes. If its speed is

    reduced by 30 km/h, how much time will it take to travel the same distance?
    A 2 hours and 30 minutes Correct Answer Incorrect Answer
    B 5 hours and 30 minutes Correct Answer Incorrect Answer
    C 3 hours and 50 minutes Correct Answer Incorrect Answer
    D 2 hours and 45 minutes Correct Answer Incorrect Answer

    Solution

    ATQ,

    Speed of the train = (150 / 100) × 60 = 90 km/h

    New speed of the train = 90 - 30 = 60 km/h

    So, required time = (150 / 60) × 60 = 150 minutes or 2 hours and 30 minutes

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