Rahul started walking from his home towards the West. After walking 15m, he turned left and walked 20m. He then turned right and walked 10m. Again, he turned right and walked 20m. In which direction is he now from his starting point?
Correct: B
Let Rahul's home be the origin (0,0).
1. Walks 15m West: Position becomes (-15, 0).
2. Turns left (South) and walks 20m: Position becomes (-15, 0-20) = (-15, -20).
3. Turns right (West) and walks 10m: Position becomes (-15-10, -20) = (-25, -20).
4. Turns right (North) and walks 20m: Position becomes (-25, -20+20) = (-25, 0).
The final position is (-25, 0) relative to the starting point (0,0).
This means he is 25m to the West of his starting point.
Therefore, he is in the West direction from his starting point.