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  1. A trained covered x km at 40 kmph and another 2x km at 20 kmph. Find the average speed of the train in covering the entire 3x km.
    2. A.
    30 kmph
    B.
    25 kmph
    C.
    24 kmph
    D.
    28 kmph
    E.
    None of these.

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    Workspace

    View Answer

    Answer : Option C

    Explanation :

    Total time taken = x/40 + 2x/20 hours

     = 5x/40 = x/8 hours 

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