P @ Q means ‘P is the sister of Q’
P & Q means ‘P is the brother of Q’
P # Q means ‘P is the mother of Q’
If A # B @ C & D # E @ F, then how is B related to F?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. Mother’s sister.
In the diagram shown;
The square shows males, the circle shows females, vertical lines show generations, a single horizontal line shows brothers or sisters, and double lines show a couple.

From the above tree, B is the mother’s sister of F.
Hence, Mother’s sister is the correct answer.