A zig-zag walk — Direction Sense Aptitude Question
A zig-zag walk: Ravi walks 10 m west, turns right and walks 5 m, turns right and walks 10 m, then turns left and… Answer and worked solution on CodeKairo.
- Topic: Direction Sense
- Section: Logical Reasoning
- Difficulty: Hard
- Time target: 105 seconds
Question
Ravi walks 10 m west, turns right and walks 5 m, turns right and walks 10 m, then turns left and walks 5 m. Where is he relative to the start?
Options
- 10 m north
- 10 m east
- 5 m north
- 20 m north
Show the answer and the worked solution
Correct answer: A. 10 m north
Worked solution
- West 10 m; right → north 5 m; right → east 10 m; left → north 5 m.
- East–west: 10 west and 10 east cancel.
- North–south: 5 + 5 = 10 m north.
- He is 10 m north of the start.
Answer: 10 m north.
The idea
Write the direction of each leg before adding anything. A right turn from west is north; a left turn from east is also north.
Shortcut. The two right turns reverse him, so the 10 m legs cancel; both 5 m legs point north (right of west, left of east), giving 10 m north.
Common trap. "5 m north" — the most tempting slip: losing track of the last leg and counting only the first 5 m northward stretch.