What is the total displacement of a student who walks 3 blocks east, 2 blocks north, 1 block west, and then 2 blocks south?

The correct answer is 2 Blocks East.

N=2, S=(-2), E=3 and W=(-1)

Where N is north, S is south, E is East and W is West.

Total displacement= N+E+S+W

T.D.= 2+3+(-2)+(-1)

T.D= 2 in the Eastern direction

2 blocks East.
North (2) - South (2) = 0. North and South cancel each other.
East (3) - West (1) = 2.
The total displacement of a student who walk 2 blocks North, 2 blocks South, 3 blocks East and 1 block West is 2 blocks East.

0 (zero) is my answer because 3-2=1 1-1=0 0-2=0

North and south cancle each other out. East and west are subtracted so the answer is 2 blocks East