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    Question

    Fresh grapes contain 70% water; dry grapes contain 10%

    water. From 20 kg fresh grapes, approximately how many kg of dry grapes can be obtained?
    A 7 Correct Answer Incorrect Answer
    B 5 Correct Answer Incorrect Answer
    C 15 Correct Answer Incorrect Answer
    D 10 Correct Answer Incorrect Answer
    E 12 Correct Answer Incorrect Answer

    Solution

    Grape without water in 20 kg fresh grapes = 30% of 20 = 6kg Since dry grapes contain 10 % water there4; 90% = 6 kg there4; 100% = `(6)/(90)` x 100 = 6.66 = 7 kg approx.

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