Question

In one day, a family in a car rode for 2 hours, stopped for 3 hours, and then rode for another 5 hours. During the day, the family traveled a total distance of 400 kilometers. What was their average speed for the whole trip

Answer 1

they rode at 40 kilometers per hour

Answer 2

I'm fairly sure that it's 40 kilometers/per hour because its the whole trip so you have a total of 10 hours divided by 400.