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    Question

    Two trains start from stations A and B towards each

    other at the same time. The distance between A and B is 360 km. One train runs at 40 km/h and the other at 50 km/h. After how many hours will they meet and how far from station A will they meet?
    A 9 hrs and 100 km Correct Answer Incorrect Answer
    B 4 hrs and 160 km Correct Answer Incorrect Answer
    C 7 hrs and 120 km Correct Answer Incorrect Answer
    D 2 hrs and 110 km Correct Answer Incorrect Answer

    Solution

    Relative speed when moving towards each other = 40 + 50 = 90 km/h Time to meet = Distance / Relative speed = 360 / 90 = 4 hours Distance from A = speed of train from A ├Ч time = 40 ├Ч 4 = 160 km Answer: They meet after 4 hours, at a point 160 km from station A.

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