A said to B: "Your father is only son of my father." then what is the relation of A to B ?

Question

Accepted Answer

To determine the relationship between A and B, let's analyze the statement made by A: "Your father is the only son of my father."

1. **Explanation for Option 4 (Father):**
   - A says to B that B's father is the only son of A's father. This implies that A's father has only one son, who is B's father.
   - Therefore, A must be B's father because A is referring to B's father as the only son of A's father. This makes A the father of B.
   - Hence, Option 4, "father," is the correct answer.

2. **Explanation for why other options are incorrect:**
   - **Option 1 (Grandfather):** If A were B's grandfather, then A's father would be B's great-grandfather, and B's father would be A's son, not the only son of A's father. This does not fit the given statement.
   - **Option 2 (Grandson):** If A were B's grandson, it would mean B is A's grandparent, which contradicts the statement that B's father is the only son of A's father.
   - **Option 3 (Granddaughter):** Similar to Option 2, if A were B's granddaughter, it would imply B is A's grandparent, which again contradicts the statement.

In conclusion, the logical analysis of the statement confirms that A is B's father, making Option 4 the correct answer.