Shiny walks 7 km towards West and takes a left turn and walks 4 km. She then takes another left turn to cover 4 km. After covering this, she walks 2 km towards South. She then finally walks 3 km towards East. How far is she from the starting point?

A person 'X' started from his home and walked 3 km straight. Then he turned right and walked 2 km. He turned right again and walked 1 km. If he is now in the North-West direction relative to his house, in which direction did he walk in the beginning?

Ramu starts from his house, moves towards the east, walks 90 m, turns right and moves 20 m. He turns right again and moves 30 m. Finally, he turns right and walks 100 m. In which direction should he walk to reach his house again?