Concept:Use given relationships to arrange all five friends in a row and find the middle person.
Explanation:We have five friends: P, Q, R, S, T, sitting in a row facing north.
From the statements:
• "S is between T and Q" means T and Q are on either side of S.
• "a is to the immediate left of R" – the likely intended word is Q, so Q is immediately left of R.
• "P is to the immediate left of T" means P and T are adjacent with P on the left.
Using these constraints, two possible arrangements fit:
Arrangement 1: P, T, S, Q, R (left to right).
Arrangement 2: Q, R, S, P, T (left to right).
In both, the middle position (third from left) is occupied by S.
Since the arrangement is unique for the middle person, S is in the middle.
Answer:S