Arun walks 16 metres towards west. Then he turns to his right and walks 16 metres and then turns to his left and walks 12 metres; again turning to his left, he walks 16 metres. What is the shortest distance between his starting position and the present position?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 28 m
Each turn is taken from the direction Arun is facing at that moment:
He walks West 16 m; facing West, a right turn is North: he walks 16 m North
Facing North, a left turn is West: he walks 12 m West
Facing West, a left turn is South: he walks 16 m South
The 16 m North and the 16 m South cancel each other, so he ends on the line he started from, \(16+12=28\) m to the West.