Directions (71-73): Study the following information carefully and answer the below questions:

A is the only son of Q who is the brother-in-law of Y. U is the mother of B but she is not the spouse of Q. Y is the unmarried brother of Z. X is the paternal aunt of B whereas V is the daughter-in-law of A. No single parent has a child and an equal number of males and females are there in the family.

How is X related to Y?

Correct Answer: Niece

Let us analyze the given family relations step-by-step to determine how X is related to Y:

1. Analyzing the generations and relationships:
- "A is the only son of Q": A is male (son), and Q is in the generation above A.
- "V is the daughter-in-law of A": V is female and married to A's child.
- "No single parent has a child": Every married person with a child has a spouse. Thus, Q must have a spouse, and A must have a spouse.
- "U is the mother of B but she is not the spouse of Q": Since U has a child (B), U must be married. A is married and Q's spouse is not U, so U must be the wife of A. Therefore, A (husband) and U (wife) are the parents of B.
- "X is the paternal aunt of B": A paternal aunt is the father's sister. Since A is the father of B, X must be the sister of A. So, X is female, and X is a child of Q and Q's spouse.
- Since A is the only son of Q, X is Q's daughter.

2. Connecting Q, Y, and Z:
- "Q who is the brother-in-law of Y" and "Y is the unmarried brother of Z":
Since Y is an unmarried male brother of Z, Q being the brother-in-law of Y means Q is married to Y's sister, Z. Thus, Z is female and is the wife of Q.
- Therefore, Q (husband) and Z (wife) are married, and Y is Z's brother.

3. Determining the relation of X to Y:
- Q and Z are the parents of X.
- Y is the brother of Z (X's mother).
- So, Y is the maternal uncle of X, which makes X the niece of Y.

Hence, X is the Niece of Y.