The puzzle
Karan, Chetan, Arjun, Bhavna sit in a single row, all facing north. Seat 1 is the far-left end and seat 4 is the far-right end. Using the clues below, work out the order from left to right.
- Chetan sits at the far-right (extreme) end of the row.
- Arjun sits immediately to the left of Bhavna.
- Exactly 1 person sits between Karan and Bhavna.
Question: What is the seating order from far-left to far-right?
Reveal the answer
Answer: Karan, Arjun, Bhavna, Chetan (left to right).
Seat 1KaranSeat 2ArjunSeat 3BhavnaSeat 4Chetan
- Start: 24 possible left-to-right orders of 4 people.
- Clue 1 — "Chetan sits at the far-right (extreme) end of the row." leaves 6 possibilities.
- Clue 2 — "Arjun sits immediately to the left of Bhavna." leaves 2 possibilities.
- Clue 3 — "Exactly 1 person sits between Karan and Bhavna." leaves 1 possibility.
- Exactly one order survives every clue — that is the answer.