Grid of neighbors at 200 m diagonals: Rahim is at the origin. Babu: 200 m north-west; Joseph: 200 m south-west; Gopal: 200 m south-east of Joseph; Roy: 200 m north-east of Gopal. Where is Roy relative to Babu?

Introduction / Context:
This is a composition of diagonal moves (NW, SW, SE, NE) on a square grid with equal step lengths (200 m). We compare Roy’s final coordinates to Babu’s coordinates.

Given Data / Assumptions:

• Use unit steps for direction; distance equality preserves direction labels.
• Babu from Rahim: NW = (−1, +1).
• Joseph from Rahim: SW = (−1, −1).
• Gopal from Joseph: SE = (+1, −1).
• Roy from Gopal: NE = (+1, +1).

Concept / Approach:
Compute coordinates relative to Rahim, then subtract to get Roy relative to Babu.

Step-by-Step Solution:

Verification / Alternative check:
Diagramming a 2×2 diamond centered near Rahim shows Roy diagonally opposite Babu along the SE diagonal.

Why Other Options Are Wrong:

• South-west/North/North-east do not match the computed relative vector.

Common Pitfalls:
Mixing “relative to Rahim” with “relative to Babu.” Always subtract the reference point’s coordinates.

Final Answer:
South east