Direction And Distance Turns

Facing towards North, Ravi walks 30m. He then turns left and walks 50m. He again turns left and walks 30m. How far is he from his original position and towards which direction?

A man walks 10 m in Front and then 10 m to the right. Then every time returning to his left, he walks 5, 15 and 15 m, respectively. How far is he now from his starting point ?

Rakesh goes 20 m North, then turns right and walk 25 m, then again turns right and walks 15 m, then again turns right and walks 25 m. How far is he from his original position?

The door of Aman's house faces the East. From the back side of his house, he walk straight 100 meters, then turns to the left and walks 100 metre again. Finally, he turns towards left and stops after walking 50 meters. Now, Aman is in which direction from the starting point?