Aman is facing south-west. He turns 90° in the clockwise direction and then 135° in the anti-clockwise direction. Which direction is he facing now?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → South
On an eight-point compass the directions are 45° apart, so a 90° turn moves the facing two points round and a 135° turn three points round.
Start: facing south-west
90° clockwise (two points: SW → W → NW): now facing north-west
135° anticlockwise (three points: NW → W → SW → S): now facing south
Shortcut:
Net turn \(=135^\circ-90^\circ=45^\circ\) anticlockwise
45° anticlockwise from south-west is south