Question

What does travel 250 miles in 5 hours is

Answer 1

I assume you're asking the miles per hour.

You have 250 miles.
You have 5 hours.

250/5 = 50

Your Answer:
50 MPH

Answer 2

I'm assuming you need to say how many miles they can travel in 1 hour

Since they travel 250 in 5 hours, we can do 250/5 to see how many miles they can travel in 1 hour
250/5
=50 miles per hour