Six in a row — Seating & Puzzles Aptitude Question
Six in a row: Six people sit in a row. A is at one end, B is next to A, C is at the other end, and D is next to C. Answer and worked solution on CodeKairo.
- Topic: Seating & Puzzles
- Section: Logical Reasoning
- Difficulty: Hard
- Time target: 105 seconds
Question
Six people sit in a row. A is at one end, B is next to A, C is at the other end, and D is next to C. If E sits between B and F, who sits third from A's end?
Options
- D
- E
- F
- B
Show the answer and the worked solution
Correct answer: B. E
Worked solution
- A = 1, C = 6, B = 2 (next to A), D = 5 (next to C).
- Seats 3 and 4 remain for E and F.
- E sits between B and F, so E must be nearer B: E = 3 and F = 4.
- Third from A's end is seat 3, which is E.
Answer: E.
The idea
Place the ends and their neighbours first, then use the 'between' clue to order the remaining pair.
Shortcut. Ends and neighbours fill seats 1, 2, 5 and 6 (A, B, D, C), so only seats 3 and 4 remain; 'E between B and F' puts E beside B. Seat 3 is E, and F never needs placing.
Common trap. "F" — counting third from C's end (C, D, F) instead of from A's end.