The puzzle
Gauri, Isha, Divya, Karan, Esha sit in a single row, all facing north. Seat 1 is the far-left end and seat 5 is the far-right end. Using the clues below, work out the order from left to right.
- Karan sits immediately to the left of Gauri.
- Exactly 1 person sits between Isha and Esha.
- Exactly 3 people sit between Isha and Karan.
- Esha sits immediately to the left of Divya.
Question: What is the seating order from far-left to far-right?
Reveal the answer
Answer: Karan, Gauri, Esha, Divya, Isha (left to right).
Seat 1KaranSeat 2GauriSeat 3EshaSeat 4DivyaSeat 5Isha
- Start: 120 possible left-to-right orders of 5 people.
- Clue 1 — "Karan sits immediately to the left of Gauri." leaves 24 possibilities.
- Clue 2 — "Exactly 1 person sits between Isha and Esha." leaves 4 possibilities.
- Clue 3 — "Exactly 3 people sit between Isha and Karan." leaves 1 possibility.
- Clue 4 — "Esha sits immediately to the left of Divya." leaves 1 possibility.
- Exactly one order survives every clue — that is the answer.