Question 1
Eight people sit in two rows of four each. Row-1 faces south and Row-2 faces north. Opposite seats align by index.
- Nihal sits opposite Diya.
- Omar sits second from one end.
- Mira sits at an extreme end.
- The person opposite Hina is not at an extreme end.
Question: Who sits directly opposite Nihal?
Table Method: Row-1 (top, South-facing) and Row-2 (bottom, North-facing) are parallel.
Fixed: Nihal opposite Diya. Use the end constraints on Mira and the non-end constraint for the person opposite Hina.
One valid arrangement:
Row-1 (South, L→R): Nihal, Omar, Tara, Fatima
Row-2 (North, L→R): Diya, Xavier, Mira, Hina
Verification:
- Nihal sits opposite Diya.
- Omar sits second from one end.
- Mira sits at an extreme end.
- The person opposite Hina is not at an extreme end.
Fixed: Nihal opposite Diya. Use the end constraints on Mira and the non-end constraint for the person opposite Hina.
One valid arrangement:
Row-1 (South, L→R): Nihal, Omar, Tara, Fatima
Row-2 (North, L→R): Diya, Xavier, Mira, Hina
Verification:
- Nihal sits opposite Diya.
- Omar sits second from one end.
- Mira sits at an extreme end.
- The person opposite Hina is not at an extreme end.