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    Question

    AZ – BZ means ‘AZ is the mother of BZ’; AZ

    x BZ means ‘AZ is the sister of BZ’; AZ ÷ BZ means ‘AZ is the daughter of BZ’ Which of the following expressions means ‘UY is the daughter of QY’?
    A QY – ZY ÷ UY x KY Correct Answer Incorrect Answer
    B QY – ZY x UY ÷ KY Correct Answer Incorrect Answer
    C KY – ZY ÷ UY x QY Correct Answer Incorrect Answer
    D KY – UY ÷ ZY x QY Correct Answer Incorrect Answer

    Solution

    QY – ZY ÷ UY x KY à Incorrect, because the last condition UY x KY is not satisfied. QY – ZY x UY ÷ KY à Correct, because it satisfies all the given conditions. KY – ZY ÷ UY x QY à Incorrect, because the condition UY x QY is not satisfied. KY – UY ÷ ZY x QY à Incorrect, because the condition ZY x QY is not satisfied. ‘QY – ZY x UY ÷ KY’ represents that ‘UY is the daughter of QY’. Hence the correct answer is (B).

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