A man walks down the backside of his house straight 25 metres, then turns to the right and walks 50 metres…
A man walks down the backside of his house straight 25 metres, then turns to the right and walks 50 metres again; then he turns towards left and again walks 25 metres. If his house faces the East, what is his direction from the starting point?
South-East
South-West
North-East
North-West
Solution
The house faces East, so the backside faces West. Walking 25 m straight from the backside means walking West. Turning right (from facing West) means facing North; walking 50 m North. Turning left (from facing North) means facing West; walking 25 m West. Net displacement: 50 m West and 50 m North of the start, so the man is to the North-West of the starting point.