Concept:Use directions after left turns to find the final position from the starting point.Explanation:Let the starting point be (0,0).Atul walks 5 km North to (0,5).He turns left and walks 10 km West to (−10,5).He turns left again and walks 2 km South to (−10,3).He turns left once more and walks 10 km East to (0,3).So, his final distance from the start is 3 km.