Smita rode her scooty Northwards, then turned left and then again rode to her left 4 km. She found herself exactly 2 km West of her starting point. How far did she ride Northward initially?
A man walks 7 km in west direction and then turns to his right and walks 7 km and then turns to his left and walks 5 km. Finally turns to his left and walks 7 km. How far and in which direction is he from his starting point?