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A $ B means A is the father of B; A # B means A is the sister of B; A * B means A is the daughter of B and A @ B means A is the brother of…

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A $ B means A is the father of B; A # B means A is the sister of B; A * B means A is the daughter of B and A @ B means A is the brother of B. Which of the following indicates that M is the wife of Q?
  • AQ $ R # T @ M
  • BQ $ R @ T # M
  • CQ $ R * T # M
  • DQ $ R @ T * M
Correct answer: D
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Q $ R @ T * M

Q $ R → Q is the father of R
R @ T → R is the brother of T
Hence, → Q is the father of T
T * M → T is the daughter of M
Hence, → M is the mother of T
Hence, M is the wife of Q.