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 ?
Let Miss Lilly start moving towards North direction. So the diagram would be as follows:
According to this diagram, Lilly is currently in the North - East Direction from her house.
If we tilt to make the current direction of Lilly in North - West direction, we get the following diagram,
Hence, Lilly would have initially moved in in the West Direction.
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