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    Question

    A train passes an electrical pole in 15 seconds and

    passes a platform 405 m long in 60 seconds. Find the length of the train. TYPE 4
    A 135 m Correct Answer Incorrect Answer
    B 155 m Correct Answer Incorrect Answer
    C 120 m Correct Answer Incorrect Answer
    D 115 m Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the length of the train be ‘x’ meter. ∴ x/15 = (x + 405)/60 ⇒ 60x = 15x + 6075 ⇒ 45x = 6075 ⇒ x = 135 m

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