Concept:The direction from the starting point is found by mapping each movement on a coordinate system and then finding the net displacement vector.Explanation:The front door faces East, so the back side faces West.Starting at the back side, Aditya faces West and walks 50 m West.Then he turns right (now facing North) and walks 50 m North.Finally he turns left (now facing West) and walks 25 m West.His net displacement: 50+25=75 m West and 50 m North.Thus, from the start, he is in the North‑west direction.Answer:North‑west (Option D)