Question regarding average velocity

[missequivocal]

Homework Statement

What is the average velocity if you drive a distance of 472.5 km at a speed of 40 km/h, then the same distance at a speed of 65 km/h? Answer in units of km/h.

Homework Equations

t = d / v

The Attempt at a Solution

11.8125 = 472.5 / 40
7.269230769 = 472.5 / 65



Not really sure where to go from here.
I've done a few of these equations before, I am just having a brain block and I need to submit the answer to this problem by tonight.

Someone just point me in the right direction. :P

 

[missequivocal]

Haha wow that was so simple. Finally remembered.
Got it. :P