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    Question

    A total journey of 250 km is completed by Ravi partly by

    boat at 25 km/h and the remaining by train at 50 km/h. If the whole trip took 6.5 hours, find the distance covered by Ravi by boat.
    A 65 km Correct Answer Incorrect Answer
    B 75 km Correct Answer Incorrect Answer
    C 45 km Correct Answer Incorrect Answer
    D 85 km Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the distance covered by boat be тАШdтАЩ km.

    Distance by train = (250 - d) km

    So, (d/25) + [(250 - d)/50] = 6.5

    Take LCM of 25 and 50 = 50

    Multiply both sides by 50:

    => 2d + (250 - d) = 325

    => 2d + 250 - d = 325

    => d + 250 = 325

    => d = 325 - 250

    => d = 75

    Therefore, Ravi travelled 75 km by boat.

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