Ninety then one hundred and eighty — Aptitude Question
Ninety then one hundred and eighty: A person facing south turns 90° clockwise and then 180°. Which direction is he… Answer and worked solution on CodeKairo.
- Topic: Direction Sense
- Section: Logical Reasoning
- Difficulty: Medium
- Time target: 60 seconds
Question
A person facing south turns 90° clockwise and then 180°. Which direction is he facing?
Options
- North
- South
- East
- West
Show the answer and the worked solution
Correct answer: C. East
Worked solution
- South, turned 90° clockwise, faces west.
- A further 180° turn reverses it to east.
Answer: East.
The idea
Convert degrees into quarter turns: 90° is one, 180° is two. Clockwise follows N → E → S → W.
Shortcut. Net rotation 90° + 180° = 270° clockwise, the same as 90° anticlockwise; south turned 90° anticlockwise faces east.
Common trap. "West" — stopping after the 90° clockwise turn and forgetting the further 180° that reverses west to east.