Question
If C + D means C is the mother of D, C – D means C is
the father of D, C x D means C is the brother of D, and C ÷ D means C is the sister of D. If TX – LY + KX ÷ WY x MX, then which of the following statements is true?Solution
Based on the given information, the following family tree can be drawn: 
MX is male → False (as it can’t be determined from the given data) LY is son of TX → False (as LY is daughter of TX) WY is grandson of TX → True (as shown in family tree diagram) KX is daughter of MX → False (as KX is sister of MX)  Hence, the correct answer is (C).
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