Tom walked 10 m towards the North, then turned right and walked 25 m. Then he turned right and walked 30 m. He then turned left and walked 10 m. Finally, he turned left and walked 20 m. How far and in which direction is he from the starting point?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 35 m East
A right turn moves the facing direction one step clockwise and a left turn one step anticlockwise (North → East → South → West → North). Track the facing direction after every turn.
Facing North, 10 m: 10 m north of the start
Turns right, now facing East, 25 m: 10 m north, 25 m east
Turns right, now facing South, 30 m: \(30-10=20\) m south, 25 m east
Turns left, now facing East, 10 m: 20 m south, \(25+10=35\) m east
Turns left, now facing North, 20 m: \(20-20=0\) m south, 35 m east
He is 35 m East of the starting point.
