What is the velocity of a car that traveled a total of 100 kilometers north in 2 hours?

Its SI units are $\frac{m}{s}$ and kilometer per hour.
Now as per question,displacement is $\vec{x}$ =$\mathrm{di} s p l a c e m e n \frac{t}{t} i m e$
Now,$v$=$\frac{100}{2}$=50kmph