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’?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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