Question

    If 'P&Q' indicates that 'P in the son of Q', and 'PSQ'

    indicates that 'P is the sister of Q', then which of the following expressions would indicate that 'Y is the mother of Z'?
    A Z$Y&X Correct Answer Incorrect Answer
    B X&Y$Z Correct Answer Incorrect Answer
    C X$Y&Z Correct Answer Incorrect Answer
    D Z&Y$X Correct Answer Incorrect Answer

    Solution

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