To find the average speed in kilometers per hour (km/h), we use the formula:

$\text{Average speed} = \frac{\text{Total distance}}{\text{Total time}}$

Here, the total distance traveled is 702 kilometers, and the total time taken is 6 hours.

$\text{Average speed} = \frac{702 \text{ km}}{6 \text{ hours}} = 117 \text{ km/h}$

So, the average speed was 117 kilometers per hour.

Would you like any details or have any further questions?

Here are 5 related questions you might find interesting:

1. How would the average speed change if the total distance was 900 km instead?
2. What would be the time taken to travel 702 km if the average speed was 130 km/h?
3. If the car stopped for 30 minutes during the journey, how would that affect the average speed?
4. How would the average speed be affected if the journey took place over varying speeds?
5. How do you calculate the average speed if there were multiple segments at different speeds?

Tip: When calculating average speed, make sure the units of distance and time are consistent (e.g., kilometers and hours).