Ram starts walking in the north direction. Which of the following options will make him go southward?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Two consecutive right turns
Each turn is a quarter turn taken from the direction he is facing at that moment: a right turn moves him clockwise (North → East → South → West) and a left turn anticlockwise. To face South from North, he must turn half a circle, that is, two quarter turns the same way.
Option (1) Two consecutive right turns — North → East → South.
Option (2) One right turn and then one left turn — North → East → North; the two turns cancel.
Option (3) Three consecutive left turns — North → West → South → East; the third turn takes him past South.
Option (4) One left turn and then one right turn — North → West → North; the two turns cancel.
