A started from his house and walked 20 m towards East, where his friend B joined him. They together walked 10 m in the same direction. Then A turned left while B turned right and travelled 2 m and 8 m respectively. Again B turned left to travel 4 m followed by 5 m to his right to reach his office. A turned right and travelled 12 m to reach his office. What is the shortest distance between the two offices?
P, Q and R are three towns. The distance between P and Q is 60 km, whereas the distance between P and R is 80 km. Q is in the West of P and R is in the South of P. What is the distance between Q and R?
Alex walks 1 mile towards East and then he turns towards South and walks further 5 miles. After that he turns East and walks 2 miles further. Finally he turns to his North and walks 9 miles. How far is he from the starting point?