Answer: the second car is 75 miles further along the route.
Step-by-step explanation:
Distance = speed × time
The two automobiles start together from the same place and travel along the same route. The first averages 40 miles per hour. After 5 hours, the distance travelled by the first automobile is
40 × 5 = 200 miles
The second automobile averages 55 miles per hour. After 5 hours, the distance travelled by the second automobile is
55 × 5 = 275 miles
The difference in the distance travelled by both automobiles after 5 hours is