रमेश पूर्व की ओर 15 मीटर गया, फिर वह बाईं ओर मुड़ा और 5√3 मीटर चलने के बाद, 120° दाईं ओर मुड़ा और 10√3 मीटर गया और फिर 120° दाईं ओर मुड़ा और 20√3 मीटर गया। रमेश प्रारंभिक बिंदु से कितनी दूरी पर था?

Piyush starts from point A and drives 6 km towards East. He then takes a right turn and drives 3 km. He takes a final right turn and drives 11 km and stops at point B. Sraman starts from point P, which is 12 km East of point A, and drives 5 km towards East. He then takes a right turn and drives 3 km. He takes a final left turn and drives 9 km and stops at point Q. What is the shortest distance between point Q and point B? (All turns are 90 degree turns only)

A man walks 2 km towards North. Then he turns to the East and walks 10 km. After this, he turns to the North and walks 3 km. Again, he turns towards the East and walks 2 km. How far is he from the starting point?