Step-by-step Solution:

Quick Solution

This is a seating arrangement puzzle. The solution is found by combining the clues to build a definitive picture of the two rows. We will assume Row 1 faces South and Row 2 faces North, so they are facing one another.

1. Deducing the Arrangement

• Clue 4 ("Only one person is in between R and T") places R and T at the ends of the same row.
• Clue 2 ("U is ... facing R") places U at an end of the opposite row. Clue 2 also states "U is to the left of S," which places them side-by-side.
• Clue 1 ("P is the middle of one row") fills the only available middle spot, which is in the row with R and T.
• This leaves only Q to fill the final spot in the row with U and S.

2. The Final Arrangement

The complete and final arrangement of the two rows is:

3. Answering the Question

- The question asks: "Who is to the left of S?"
- S is in Row 2 and is facing North.
- For a person facing North, their left is to the West (to the left side of our diagram).
- Looking at the sequence in Row 2 (U S Q), the person to the immediate left of S is U.

Final Answer: U is to the left of S.