If 'A + B' means A is the son of B, 'A - B' means 'A is the daughter of B'. A & B' means 'A is the father of B', and A @ B' means 'A is the mother of B'. Then, what does P + R @ Q mean?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4, i.e., P is the brother of Q.

According to the given data, only option 4, i.e., P is the brother of Q, is correct.