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    Question

    A journey of 250 km is partly done by walking at 5 km/h and

    the rest by cycling at 25 km/h. If the entire trip took 11 hours, find the walking distance.
    A 1.4 km Correct Answer Incorrect Answer
    B 5.4 km Correct Answer Incorrect Answer
    C 6.5 km Correct Answer Incorrect Answer
    D 12.5 km Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let walking distance = d km

    Then, cycling distance = 250 - d km

    Equation: d / 5 + (250 - d) / 25 = 11

    LCM of 5 and 25 = 25

    So, 5d + (250 - d) = 275

    5d + 250 - d = 275

    4d = 25

    d = 6.25

    Distance walked = 6.25 km

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