Question

A and B are brothers. R and S are sisters. A's son is S's brother. How is B related to R?

• A. Uncle
• B. Brother
• C. Grand father
• D. Father

Hint:

For blood relation problems, translate the statements into direct family links. The phrase "X's child is Y's sibling" is a common way to establish that X is the parent of Y.

Answer 1

The Correct Option is A

Step 1: Break down and interpret the given relationships. - A and B are brothers. - R and S are sisters. - "A's son is S's brother": This is the key link. It means that A has a son, and this son is a sibling to S. Since S has a sister R, it means A's son, S, and R are all siblings.
Step 2: Establish the parent-child relationship. Since A's son, S, and R are siblings, they must share the same parent(s). The statement directly tells us A is the father of the son. Therefore, A is the father of all three children: his son, S, and R.
Step 3: Determine the final relationship. We need to find how B is related to R. - We established that A is the father of R. - We are given that B is the brother of A. - The brother of one's father is their paternal uncle. Therefore, B is R's uncle.