Final answer:
The total distance traveled is the sum of all individual distances, which is 12km. However, displacement is a vector quantity that requires direction to calculate, which is not provided in the question.
Step-by-step explanation:
The question pertains to the concept of displacement and distance in physics. The total distance traveled is a scalar quantity which means it is the sum of all movements without considering the direction. In this case, it is the sum of 1km, 3km, 6km, and 2km, which would be 12km. However, displacement is a vector quantity, meaning it does take into account the direction of the movement. To calculate the effective displacement, the direction of each vector must be considered and these vectors must be combined accordingly using vector addition. The information provided in this question is not sufficient to calculate displacement, as the directions of the vectors are not given. The total distance is 12km; if the displacement is required, additional information about the directions of the vectors is needed.