Question

Aman said, “She is the daughter of the only son of my grandfather.” How is the girl related to Aman?

• A. Sister
• B. Cousin
• C. Daughter
• D. Aunt

Hint:

To solve blood relations quickly, work backwards.
"My grandfather's only son" $\rightarrow$ My Father.
"Daughter of my father" $\rightarrow$ My Sister.
This vertical tracking avoids confusion and speeds up solving.

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
This is a blood relation puzzle. We need to analyze the statement made by Aman to determine the specific relationship between him and the girl he is speaking about.
Step 2: Detailed Explanation:

1. Let us break down Aman's statement step-by-step from the end to the beginning to trace the family tree clearly.

2. Identify the phrase: "my grandfather". This refers to Aman's grandfather (paternal or maternal, typically assumed paternal in standard blood relation reasoning).

3. Identify the phrase: "the only son of my grandfather".
- Aman's grandfather has only one son.
- The only son of a person's paternal grandfather is that person's father.
- Therefore, "the only son of my grandfather" refers directly to Aman's father.

4. Identify the remaining phrase: "the daughter of...".
- Substituting the analyzed relation, the statement becomes: "She is the daughter of Aman's father."

5. Determine the relationship of "the daughter of Aman's father" to Aman:
- The daughter of Aman's father must be Aman's sibling.
- Specifically, she is Aman's sister.

6. Thus, the girl is related to Aman as his sister.

Step 3: Final Answer:
The girl is related to Aman as his Sister. Hence, the correct option is (A).