Alisha goes 30 meters North, then turns right and walks 40 meters, then she again turns right and walks 20 meters, then again she turns right and walks 40 meters. How many meters is Alisha finally from her original position?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 10 meters
Each turn is taken from the direction she is facing at that moment:
She walks North 30 m; facing North, a right turn is East: 40 m
Facing East, a right turn is South: 20 m
Facing South, a right turn is West: 40 m
The 40 m East and 40 m West cancel each other, so she ends on her starting line, \(30-20=10\) m North of the start.