Question

In a certain code language, ‘A # B’ means ‘A is the mother of B’, ‘A % B’ means ‘A is the brother of B’, ‘A − B’ means ‘A is the wife of B’ and ‘A @ B’ means ‘A is the father of B’. How is K related to Y if ‘K − L @ P # O % Y’?

• A. Mother's sister
• B. Mother's mother
• C. Mother
• D. Sister

Answer 1

Answer:

B. Mother's mother

K is the maternal grandmother (mother's mother) of Y.

• O % Y $\rightarrow$ O is the brother of Y.

• P # O $\rightarrow$ P is the mother of O (and therefore, P is also the mother of Y).

• L @ P $\rightarrow$ L is the father of P.

• K − L $\rightarrow$ K is the wife of L (making K and L the parents of P).

Conclusion

Since P is the mother of Y, and K is the mother of P, K is Y's maternal grandmother.