Deepak walked 20 m towards the South. Then he turned to his left and walked 15 m. He again turned to his left and walked 20 m. Finally, he turned to his right and walked 10 m. How far and in which direction is he from the starting point?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 25 m East
A left turn moves the facing direction one step anticlockwise (South → East → North) and a right turn one step clockwise (North → East). Track the facing direction after every turn and keep a running total of the distance from the start.
Facing South, 20 m: 20 m south of the start
Turns left, now facing East, 15 m: 20 m south, 15 m east
Turns left, now facing North, 20 m: \(20-20=0\) m south, 15 m east
Turns right, now facing East, 10 m: \(15+10=25\) m east
Deepak is 25 m East of the starting point.
