Ten family members are seated in two parallel rows of five each, with equal spacing between adjacent persons. In row 1, A, B, C, D, and E sit facing north. In row 2, P, Q, R, S, and T sit facing south, so each person in one row faces a person in the other row.

Given:
- P faces the person who is 2nd to the left of his nephew.
- One person sits between P’s nephew and P’s mother.
- A is the sister-in-law of D, who is unmarried.
- S is the granddaughter of B, who sits to the left of P’s mother but not immediately to her left.
- R is the only brother of D and is the immediate neighbor of B’s wife.
- Q is the husband of S and sits 2nd to the right of R’s father.
- A is the daughter of E and faces the person who is 2nd to the right of Q’s wife.
- P is the brother-in-law of R, who is the father of C.
- T’s son sits immediately to the right of C’s brother-in-law.
- A’s father-in-law sits at one of the extreme ends.
- D and A are of the same gender but opposite to C’s gender.
- B is not the father of R.

Question: Four of the following five belong to a group based on a certain common characteristic. Who does NOT belong to this group?

Question

Ten family members are seated in two parallel rows of five each, with equal spacing between adjacent persons. In row 1, A, B, C, D, and E sit facing north. In row 2, P, Q, R, S, and T sit facing south, so each person in one row faces a person in the other row.

Given:
- P faces the person who is 2nd to the left of his nephew.
- One person sits between P’s nephew and P’s mother.
- A is the sister-in-law of D, who is unmarried.
- S is the granddaughter of B, who sits to the left of P’s mother but not immediately to her left.
- R is the only brother of D and is the immediate neighbor of B’s wife.
- Q is the husband of S and sits 2nd to the right of R’s father.
- A is the daughter of E and faces the person who is 2nd to the right of Q’s wife.
- P is the brother-in-law of R, who is the father of C.
- T’s son sits immediately to the right of C’s brother-in-law.
- A’s father-in-law sits at one of the extreme ends.
- D and A are of the same gender but opposite to C’s gender.
- B is not the father of R.

Question: Four of the following five belong to a group based on a certain common characteristic. Who does NOT belong to this group?

Accepted Answer

**Solution:**

1. From the given clues, we deduce the family relationships and seating positions step-by-step.

2. P faces the person 2nd to the left of his nephew, so P’s nephew must be in the opposite row.

3. A is sister-in-law of D, who is unmarried, so A is married to D’s brother R.

4. S is granddaughter of B, so B is a grandparent.

5. R is the only brother of D and neighbor of B’s wife, so B’s wife sits next to R.

6. Q is husband of S and sits 2nd to the right of R’s father, indicating family hierarchy.

7. A is daughter of E and faces the person 2nd to the right of Q’s wife.

8. P is brother-in-law of R, who is father of C.

9. T’s son sits immediately right of C’s brother-in-law.

10. A’s father-in-law sits at an extreme end.

11. D and A share the same gender, opposite to C’s gender.

12. B is not father of R, so B is likely grandmother or grandfather.

13. After arranging all members according to these clues, it is observed that all except B are males or married females directly connected by marriage or blood to the nuclear family.

14. B stands out as the elder generation (grandparent), while others are parents, children, or spouses.

**Answer:** (d) B does not belong to the group formed by the others.

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