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    Question

    Fresh grapes contain 80% water while dry grapes contain

    20% water. How many kilograms of fresh grapes are needed to make 500 grams of dry grapes?
    A 6 kg Correct Answer Incorrect Answer
    B 2 kg Correct Answer Incorrect Answer
    C 5 kg Correct Answer Incorrect Answer
    D 10 kg Correct Answer Incorrect Answer

    Solution

    ATQ,

    Fresh grapes: 20% solid Dry grapes: 80% solid Let weight of fresh grapes be x grams Solid content remains constant: 0.2x = 0.8 * 500 0.2x = 400 → x = 2000 grams = 2 kg

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