Questions :
A boy walks 9 meters towards the north, then turns right and walks 12 meters, and then walks 9 meters towards the south. How far is he from the starting point?
Options :
- 9 meters
- 12 meters
- 15 meters
- 21 meters
correct answer : b)
Explanation :
The north–south distances cancel each other, and he is 12 meters away in the east direction.