Miss Lilly' started her journey from her house and goes 2 km straight. Then, she turns towards her right and goes 1 km. She again turns towards her right and goes 1 km again. If finally she is in the north-west direction from her house, then in which direction did she go in the beginning ?
Lilly walks 2 km forward, turns right and walks 1 km, then turns right again and walks 1 km. Her final position is northwest of her starting point. Her initial direction must be west to achieve this result.