Radha walks 7 km towards south-east then she walks 14 km towards west from here she walks 7 km towards north-west and finally walks 4 km towards east. At what distance is he from the starting point?
Explanation:
The 7 km SE and 7 km NW paths cancel out their vertical (North/South) components. The net horizontal movement from these diagonal paths exactly matches. Effectively, she goes 14 km West and then 4 km East, leaving her 10 km West of her starting point.
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