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    Question

    A 240 m long train clears a platform of length 160 m in

    16 seconds. The ratio of its speed to that of another train is 5:6. Find the length of the second train if it crosses a pole in 21 seconds.
    A 200 m Correct Answer Incorrect Answer
    B 630 m Correct Answer Incorrect Answer
    C 120 m Correct Answer Incorrect Answer
    D 330 m Correct Answer Incorrect Answer

    Solution

    ATQ,

    Speed of train 1 = (240 + 160) / 16 = 25 m/sec

    Speed of train 2 = (25 × 6) / 5 = 30 m/sec

    Length of train 2 = 30 × 21 = 630 m

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