The door faces East, placing the back (West) as the starting point (0,0). 1. Move West 50 m: Position (-50, 0). 2. Turn North, walk 50 m: Position (-50, 50). 3. Turn West, walk 25 m: Position (-75, 50). Final position: (-75, 50). The x-coordinate is negative (West), y-coordinate is positive (North). Madan is North-West of the starting point, matching option (2).