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    Question

    'R - S' means 'R is the brother of S' 'R # S'

    means 'R is the daughter of S' 'R * S' means 'R is the father of S' 'R $ S' means 'R is the wife of S' If 'W $ X - Z * Y', then how is W related to Z?
    A W is the sister-in-law of Z Correct Answer Incorrect Answer
    B W is the sister of Z Correct Answer Incorrect Answer
    C W is the daughter of Z Correct Answer Incorrect Answer
    D W is the son of Z Correct Answer Incorrect Answer

    Solution

    W $ X - Z * Y à W is the wife of X, X is the brother of Z, and Z is the father of Y.   Since X and Z are brothers W is X’s wife, it means W is the sister-in-law of Z. Hence, the correct answer is (A).

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