A student walks 90 m east from his home and turns right. He walks 20 m, turns right again, and walks 30 m to reach a friend's house. From there, he walks 100 m north to reach his tutor's home. How far is his tutor's home from his own home in a straight line?

Rohit is facing North. He turns 90° in the clockwise direction, then 135° in the same direction, and finally 270° in the anti-clockwise direction. Which direction is Rohit facing now?

Mohan started walking from Point A towards South. He walked for 4 m and turned left. He walked for 3 m and turned left again. He walked for 2 m and turned left again. He walked for 5 m. Once again, he turned left and walked for 4 m. Again, he turned left and walked for 7 m. Lastly, he turned left again and walked for 6 m before stopping at Point B. How far (shortest distance) and towards which direction should he walk from Point B in order to reach Point A again?