Fernandal and Erletti start from their office and each walks 10 km in opposite directions. Fernandal then turns left and walks 10 km. Erletti takes a right turn and walks 10 km. How far are they both from each oth er?

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?