This question involves arranging eight boys around a round table based on a set of clues. We need to deduce the correct seating order and then verify which of the given statements is true.

Understanding the Round Table Seating Arrangement

In a round table arrangement where everyone is facing the center, "immediate right" and "immediate left" are relative to the person's perspective. Opposite positions divide the table into two equal halves.

Step-by-Step Solution to the Seating Puzzle

Let's build the seating arrangement step-by-step using the provided clues:

1. We have 8 boys: P, Q, R, S, T, U, V, W. They are around a round table with equal spacing.
2. Clue 1: S is seated exactly opposite to P. Let's place P anywhere. S must be in the position directly across from P.
3. Clue 2: P has U and R as his immediate neighbours. This means U and R are on either side of P. Let's assume, for now, U is to P's immediate right (clockwise) and R is to P's immediate left (counter-clockwise). We can adjust this later if needed.
4. Clue 3: V is to the immediate right of S. If we look at S (facing the center), the person to S's immediate right will be in the clockwise direction from S. So, V is clockwise from S.
5. Clue 4: T is seated immediately next to V. Since V is to the immediate right of S (clockwise from S), T must be next to V. This means V is between S and T in the clockwise direction. So, we have a sequence S - V - T sitting together clockwise.
6. Clue 5: Q is exactly opposite to T. We can place Q directly across from T.
7. Clue 6: Q does not have R as his immediate neighbour. We will use this clue to check our arrangement or decide between possible arrangements (like the initial choice of U and R's sides relative to P).

Let's try to sketch the arrangement based on these clues. We can list the positions in clockwise order starting from P:

1. Start with P. Position 1: P
2. S is opposite P. In an 8-person arrangement, opposite means 4 positions away. So, Position 5: S
3. U and R are neighbours of P (Positions 2 and 8). Let's place U at Position 2 and R at Position 8.
4. V is immediate right of S. From S (Position 5), the immediate right is Position 6. Position 6: V
5. T is next to V. Since V is at Position 6, T must be at Position 7 (in the clockwise sequence S-V-T). Position 7: T
6. Q is opposite T. T is at Position 7. Opposite Position 7 is Position 3. Position 3: Q

So far, the arrangement is (clockwise starting from P): P, U, Q, ?, S, V, T, R. The positions are:

• Position 1: P
• Position 2: U
• Position 3: Q
• Position 4: ?
• Position 5: S
• Position 6: V
• Position 7: T
• Position 8: R

The only remaining person is W, and the only remaining position is Position 4. So, W must be at Position 4.

The complete clockwise arrangement starting from P is: P, U, Q, W, S, V, T, R.

Let's verify all clues with this arrangement:

• S opposite P: P at 1, S at 5. Yes.
• P neighbours U and R: U at 2, R at 8. Yes.
• V immediate right of S: S at 5, V at 6 (clockwise). Yes.
• T next to V: V at 6, T at 7. Yes (T is also next to R at 8).
• Q opposite T: Q at 3, T at 7. Yes.
• Q does not have R as neighbour: Q at 3. Neighbours are U at 2 and W at 4. R is at 8. Yes.

All clues are satisfied by the arrangement: P - U - Q - W - S - V - T - R (clockwise).

Let's list who is opposite whom in this arrangement:

• P is opposite S
• U is opposite V
• Q is opposite T
• W is opposite R

Verifying the Statements

Now we check each given statement based on our derived seating arrangement.

1. R is seated exactly opposite to W.

   In our arrangement, W is opposite R. This statement is true.

2. S and U are the immediate neighbours of W.

   W is seated between Q and S. W's immediate neighbours are Q and S. U is a neighbour of P and Q. This statement is false.

3. Q and U are not the neighbours of each other.

   Q is seated between U and W. Q's immediate neighbours are U and W. U is a neighbour of P and Q. U and Q are immediate neighbours. This statement is false.

4. T is seated immediately next to V but not next to R.

   T's immediate neighbours are V and R. T is next to V and also next to R. The statement says T is not next to R, which is false.

Conclusion

Based on the detailed seating arrangement derived from the clues, only the first statement is correct.

Revision Table: Seating Arrangement Puzzle

Key concepts used in solving this round table puzzle include understanding relative positions (left/right from a person's perspective facing the center) and opposite positions in a circular arrangement. Always start with a fixed position and build the arrangement step-by-step, verifying each clue as you go. Pay close attention to the wording like "immediate neighbour" and "exactly opposite".

Additional Information: Types of Seating Arrangements

Seating arrangement problems are common in logical reasoning tests. They can involve:

• Linear Arrangement: People or objects arranged in a straight line (single row or double row).
• Circular Arrangement: People or objects arranged around a circle (facing center, facing outwards, or mixed).
• Rectangular/Square Arrangement: People or objects around a table with sides (corners, middle of sides).

Solving these problems often requires deductive reasoning, careful interpretation of clues, and systematic diagramming or listing of possibilities.