एक छात्र पूर्व दिशा में 1 किमी चलता है, फिर दक्षिण की ओर मुड़ता है और 5 किमी चलता है। इसके बाद, वह पूर्व की ओर मुड़ता है और 2 किमी चलता है तथा फिर से उत्तर की ओर मुड़कर 9 किमी चलता है। वह छात्र अपने प्रारंभिक बिंदु से कितनी दूर है?

Natraj starts from Point Y and drives 19 km towards the North. He then takes a right turn, drives 75 km, turns right and drives 42 km. He then takes a right turn and drives 33 km. He takes a right turn, drives 89 km. He then turns left, drives 42 km to stop at Point Z. How far (shortest distance) and towards which direction should he drive in order to reach Point Y again?

Chaitanya starts from Point Y and drives 15 km towards the South. He then takes a left turn, drives 16 km, turns right and drives 56 km. He then takes a left turn and drives 35 km. He takes a left turn, drives 29 km. He then turns right, drives 27 km, turns left and drives 42 km to stop at Point Z. How far (shortest distance) and towards which direction should he drive in order to reach Point Y again?