एक बच्चा दक्षिण की ओर उन्मुख है। वह वामावर्त (anticlockwise) दिशा में 45° मुड़ता है और उस दिशा में दौड़ता है। फिर वह दक्षिणावर्त (clockwise) दिशा में 90° मुड़ता है और उस दिशा में दौड़ता है और अंत में, दाईं ओर मुड़कर रुक जाता है। अब उसका मुख किस दिशा की ओर है?

Four birds A, B, C and D started flying to collect food towards the South. After flying 2 km, birds B and D flew towards their left, while birds A and C flew towards their right. After another 3 km, birds A and C flew towards their right, and birds B and D also flew towards their right. In which directions are the birds A, B, C and D respectively flying now?

Point A is 9 m towards the east of point B. Point C is 5 m towards the south of point A. Point D is 3 m towards the west of point C. Point E is 5 m towards the north of point D. Point F is 7 m towards the south of point D. Which of the following points are in a straight line?