If P and Q interchange their positions and S and R interchange their positions. Then S and Q move diagonally and meet at the centre. P is in ________ of S.

The correct answer is (C) North-East.

• Logical Principle: Assume a standard square arrangement of four points: P (top-left), Q (top-right), R (bottom-left), and S (bottom-right). The problem requires tracking positional shifts in a two-dimensional grid.
• Step-by-step Deduction: 1. Initial State: P(Top-Left), Q(Top-Right), R(Bottom-Left), S(Bottom-Right). 2. Interchange P/Q and S/R: Now, Q is at Top-Left, P is at Top-Right, S is at Bottom-Left, R is at Bottom-Right. 3. Final Positions: After S and Q move diagonally to the centre, P remains at the Top-Right position relative to the grid.
• Verification: In the standard Cartesian coordinate system, if S is at the center (or bottom-left quadrant) and P is at the top-right quadrant, P is located to the North-East of S. Other options are incorrect as they do not align with the geometric transformation described.