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  1. A man complete a journey in 10 hrs. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km?
    2. A.
    220 km
    B.
    224 km
    C.
    230 km
    D.
    234 km

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    Answer : Option B

    Explanation :

    Let the total distance be x km.

    Then, [(1/2 x) / 21 + (1/2 x) / 24] = 10

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