Directions And Displacement

Step 1: Visualize the directions and distances.
Aman walks as follows: - 30m East - 20m North (after turning left) - 30m West (after turning right) - 20m North (finally turns north)

Step 2: Calculate the displacement.
In the East-West direction, he moves 30m east and 30m west, so the net displacement is 0. In the North-South direction, he moves 20m north twice, so the net displacement is 40m. Therefore, the distance between the starting point and the end point is 40m.

Final Answer: