Question

In a certain code language, ‘P is brother of Q’ is written as ‘P#Q’, ‘Q is sister of R’ is written as ‘Q$R’, ‘R is father of S’ is written as ‘R@S’. How is P related to S?

• A. Uncle
• B. Brother
• C. Father
• D. Grandfather

Hint:

When drawing quick charts on rough paper, use plus signs $(+)$ for male relatives, minus signs $(-)$ for female relatives, horizontal bonds for siblings, and vertical drops for children to map paths instantly!

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Coded blood relations require breaking down operational symbols step-by-step to build a family tree hierarchy. We track gender indicators (male/female) and generational gaps (parents/siblings) to establish relationships.

Step 2: Key Formula or Approach:
Decode the operator string symbol by symbol:
• $\# \rightarrow$ Brother (Same generation, Male)
• $\$ arrow$ Sister (Same generation, Female) \item $@ arrow$ Father (One generation up, Male) \end{itemize}
Step 3: Detailed Explanation:
Let's assemble the family structural connection string logically from the definitions: 1. $P # Q \implies$ $P$ is the brother of $Q$. (Hence, $P$ is male, living in the same generation tier as $Q$). 2. $Q \$ R \implies$ $Q$ is the sister of $R$. (This shows $P$, $Q$, and $R$ are all real biological siblings). 3. $R @ S \implies$ $R$ is the father of $S$. (This moves the chart down one generation level to $S$). Looking closely at the generation loop: $R$ is the father of $S$. $P$ is the direct brother of $R$. Therefore, your father's brother is defined structurally as your paternal Uncle.

Step 4: Final Answer:
P is the Uncle of S.