A delivery boy starts from the warehouse and goes $6\text{km}$ West to deliver a parcel. He then goes $4\text{km}$ North to pick another order, then $2\text{km}$ East for another delivery and finally $3\text{km}$ North to a customer location. What is his final direction from the warehouse?

Let the warehouse be at the origin $(0,0)$.
1. Goes $6\text{km}$ West: Position becomes $(-6,0)$.
2. Goes $4\text{km}$ North: Position becomes $(-6,4)$.
3. Goes $2\text{km}$ East: Position becomes $(-6+2,4)=(-4,4)$.
4. Goes $3\text{km}$ North: Position becomes $(-4,4+3)=(-4,7)$.

The final coordinates of the delivery boy are $(-4,7)$.
Relative to the warehouse $(0,0)$:

* The x-coordinate is negative (West).
* The y-coordinate is positive (North).

Therefore, his final direction from the warehouse is North-West.