From a point S, Rohan walked 30 metres towards the North, then turned to his right and walked 30 metres. He again turned to his right and walked another 50 metres, and finally turned to his right and walked 30 metres. In which direction and at what distance is he from the starting point S?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 20 metres to the South
A right turn moves the facing direction one step clockwise (North → East → South → West). Track the facing direction after every turn and keep a running total of the distance from S.
Facing North, 30 m: 30 m north of S
Turns right, now facing East, 30 m: 30 m north, 30 m east
Turns right, now facing South, 50 m: \(50-30=20\) m south, 30 m east
Turns right, now facing West, 30 m: 20 m south, \(30-30=0\) m east
Rohan is 20 metres to the South of S.
