Logical Reasoning
hardQ. No. 19806
A car travels 12 km West, 5 km North and 12 km East. In which direction is it from the start?
Last Updated:
AEast
BSouth
CWest
DNorth
Correct Answer: NorthYour Answer: D
Explanation
Step 1: Translate the route into horizontal and vertical components. | Step 2: 12 km West cancels 12 km East; 5 km North remains. | Step 3: Hence the required result is North. | Answer: Option D — North.
Important Notes
- Draw a north arrow before solving and take East as positive x, West as negative x, North as positive y, and South as negative y. |
- Apply every turn from the person's current facing direction. A right turn changes direction clockwise; a left turn changes it anticlockwise. |
- Combine opposite movements before calculating distance: cancel East with West and North with South. |
- Decide the final direction from the signs of the remaining horizontal and vertical displacements. For example, positive x and negative y indicate South-East. |