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  1. If a : b = 4 : 1, then find (a - 3b)/(2a - b).
    2. A.
    2/7
    B.
    1/7
    C.
    3/7
    D.
    5/7
    E.
    None of these

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    Answer : Option B

    Explanation :

    a : b = 4 : 1

    a/b = 4/1 => a = 4b

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