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Discussion :: Percentage

  1. The quality of water that should be added to reduce 9 ml. Lotion containing 50 % alcohol to a lotion containing 30 % alcohol is
    2. A.
    3 ml
    B.
    4 ml
    C.
    5 ml
    D.
    6 ml

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    Answer : Option D

    Explanation :

    Alcohol in 9 ml lotion = (50/100 × 9)ml = 4.5ml 


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