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    Question

    A train covers 240 km in 4 hours. If its speed is

    increased by 20 km/h, how much time will it take to cover the same distance?
    A 3 hrs Correct Answer Incorrect Answer
    B 2 hrs 45 mins Correct Answer Incorrect Answer
    C 5 hrs Correct Answer Incorrect Answer
    D 1 hrs 20 mins Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Original speed = 240/4 = 60 km/h New speed = 60 + 20 = 80 km/h Time = 240/80 = 3 hours

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