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    Question

    Two trains running in a opposite directions crosses pole

    in 84s and 57s respectively and they cross each other in 72s. Find the ratio of their speeds?
    A 2 : 1 Correct Answer Incorrect Answer
    B 7 : 5 Correct Answer Incorrect Answer
    C 4 : 3 Correct Answer Incorrect Answer
    D 7 : 4 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

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