A girl walks 2 km north, then east for 3 km, south for 3 km, west for 2 km and north for 1 km. In which direction and how far should she walk to return to the start ?

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A girl walks 2 km north, then east for 3 km, south for 3 km, west for 2 km and north for 1 km. In which direction and how far should she walk to return to the start ?

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