Rohan walks 3 km North, then 2 km West, then 3 km South, then 3 km East. How far from the starting point is he now?

Difficulty: Easy

Correct Answer: 1 KM

Explanation:


Introduction / Context:
The path forms a near-rectangle with one side longer on the final East leg. We compute net displacements on each axis and then the straight-line distance to the origin.



Given Data / Assumptions:

  • 3 km North → y = +3.
  • 2 km West → x = −2.
  • 3 km South → y back to 0.
  • 3 km East → x = −2 + 3 = +1.


Concept / Approach:
End point: (1, 0). Distance to origin is simply the absolute x-offset.



Step-by-Step Solution:
Final coordinates: (1, 0).Distance = sqrt(1^2 + 0^2) = 1 km.



Verification / Alternative check:
North/South cancel; net East = 1 km.



Why Other Options Are Wrong:
2/3/5 km do not reflect the computed net offset.



Common Pitfalls:
Forgetting that the North and South legs cancel exactly.



Final Answer:
1 KM

More Questions from Direction Sense Test

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion