Comprehension:
A family has 6 members P, Q, R, S, T, and U.
Q is the son of R, but is not the mother of Q. P and R are a married couple. T is the brother of R. S is the daughter of P. U is the sister of Q.
How many brothers does U have?

Options

A. 3
B. none
C. 2
D. 1

Answer

To solve the problem step by step, we will analyze the relationships given in the comprehension.

### Step 1: Identify the relationships
- We have six family members: P, Q, R, S, T, and U.
- Q is the son of R, which means Q is male.
- R is not the mother of Q, indicating R is male.
- P and R are a married couple.

**Hint:** Start by determining the gender of each family member based on the relationships described.

### Step 2: Establish the family structure
- Since Q is the son of R and R is male, R must be the father.
- P, being married to R, must be R's wife and therefore the mother of Q.
- T is mentioned as the brother of R, making T the uncle of Q.
- S is the daughter of P, which means S is also a child of R.
- U is the sister of Q, which means U is also a child of P and R.

**Hint:** Draw a family tree to visualize the relationships and confirm the connections.

### Step 3: List the children of P and R
- The children of P and R are:
- Q (son)
- S (daughter)
- U (daughter)

**Hint:** Count the number of sons and daughters to clarify the family composition.

### Step 4: Determine how many brothers U has
- From the list of children, we see that U has one brother, Q.
- S is a sister, and since U is a daughter, the only brother U has is Q.

**Hint:** Focus on the siblings of U to answer the question.

### Conclusion
U has 1 brother, which is Q.

**Final Answer:** U has 1 brother.

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