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    Question

    Train M, ‘x’ metres long crosses (x – 35) metres

    long platform in 28 seconds while train N having the length (x + 35) metres crosses the same platform in 32 seconds. If the speeds of both trains are same then find the value of ‘x’.
    A 150 Correct Answer Incorrect Answer
    B 105 Correct Answer Incorrect Answer
    C 170 Correct Answer Incorrect Answer
    D 140 Correct Answer Incorrect Answer
    E 165 Correct Answer Incorrect Answer

    Solution

    Total distance travelled by train M = (2x – 35) m Total distance travelled by train N = (x + 35 + x – 35) = 2x m According to question, => (2x – 35)/28 = 2x/32 => 64x – 1120 = 56x => 8x = 1120 => x = 140 m

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