Ravi was facing East. He walked 5 km forward and then after turning to his right walked 4 km. Again he turned to his right and walked 4 km. Again he turned to his right and walked 5 km. After this, he turned back. Which direction was he facing at that time?
South
The movements of Ravi may be shown as:
Ravi was facing North, after he turned back, he was facing South.