After walking 12 km, Nandalal turned right and covered a distance of 4 km. Then he turned left and covered a distance of 20 km. In the end, he was moving towards the north. What is the direction of his starting point with respect to his ending point?
To find the starting point of Nandalal's journey we have to move in the reverse direction i.e. He turned left and covered a distance of 20 km. It means he is walking in East direction and take left to move in North direction After walking 12 km, Nandalal turned right and covered a distance of 4 km. It means he is waking in the South direction and take a right turn to move in East direction. So, Nandlal starts his journey from the south direction. The below-given diagram shows Nandalal's journey:
Point A shows the starting point and point B shows the endpoint. Thus, the direction of his starting point with respect to his ending point is south-west. Hence, "South-west" is the correct answer.