Seven friends—A, B, C, D, E, F and G—are sitting in a circle facing the…
2017
Seven friends—A, B, C, D, E, F and G—are sitting in a circle facing the centre. E is a neighbour of A and D. G is not between F and C. F is to the immediate right of A. C is not a neighbour of D or F. Who is sitting to the immediate right of G?
Answer: C. D — ConceptIn a circular arrangement, one person may be fixed at any seat because rotation does not change relative positions. When everyone faces the centre,…
- A.
C
- B.
F
- C.
D
- D.
A
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Show answer & explanation
Correct answer: C
Concept
In a circular arrangement, one person may be fixed at any seat because rotation does not change relative positions. When everyone faces the centre, “right” follows the counter-clockwise direction; adjacency and “between” clues then eliminate seats.
Application
Fix A at any seat. Place F immediately to A’s right.
E must be adjacent to both A and D. Since F already occupies one side of A, place E on A’s other side and D next to E.
The three consecutive empty seats between F and D must contain B, C and G.
C cannot be a neighbour of F or D, so C must occupy the middle of those three seats.
G cannot be between F and C, so the seat between F and C belongs to B. G takes the remaining seat between C and D.
The complete rightward order is A → F → B → C → G → D → E → A.
Cross-check
E is adjacent to A and D.
F is immediately right of A.
C is adjacent to neither F nor D.
G is not between F and C.
In the rightward order, D comes immediately after G. Therefore, D is sitting to the immediate right of G.