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    Question

    Fresh mushrooms are 90% water, but after drying they

    retain only 20% water. How much fresh mushroom is needed to make 1 kg of dried mushroom?
    A 6 kg Correct Answer Incorrect Answer
    B 3 kg Correct Answer Incorrect Answer
    C 5 kg Correct Answer Incorrect Answer
    D 8 kg Correct Answer Incorrect Answer

    Solution

    Fresh: 10% solid Dry: 80% solid Let fresh = x grams 0.1x = 0.8 * 1000 0.1x = 800 → x = 8000 grams = 8 kg

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