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    Question

    Train M, ‘x’ metres long crosses (x – 32) metres

    long platform in 20 seconds while train N having the length (x + 32) metres crosses the same platform in 25 seconds. If the speeds of both trains are same then find the value of ‘x’.
    A 75 Correct Answer Incorrect Answer
    B 68 Correct Answer Incorrect Answer
    C 100 Correct Answer Incorrect Answer
    D 95 Correct Answer Incorrect Answer
    E 80 Correct Answer Incorrect Answer

    Solution

    Total distance travelled by train M = (2x – 32) m Total distance travelled by train N = (x + 32 + x – 32) = 2x m According to question, => (2x – 32)/20 = 2x/25 => 50x – 800 = 40x => 10x = 800 => x = 80 m

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