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 goes 2 km straight, then turns right and goes 1 km, then turns right again and goes 1 km. After this, she is in the north-west direction from her house. The initial direction must be west to result in the described final direction.