Q: Two automobiles start together from the same place and travel along the same route. The first averages 40 miles per hour. The second averages 55 miles per hour. How many miles further along the route is the second automobile at the end of 5 hours?

A. [tex]55 \times 5[/tex]

B. [tex]55 - 40[/tex]

C. [tex](55 \times 5) - (40 \times 5)[/tex]

D. [tex]\frac{55}{5} - \frac{40}{5}[/tex]



Answer :

To determine how many miles further along the route the second automobile is compared to the first one at the end of 5 hours, we need to calculate the distance each automobile has traveled and find the difference between those distances.

Given:
- The first automobile averages 40 miles per hour.
- The second automobile averages 55 miles per hour.
- The time traveled is 5 hours.

Step-by-step solution:

1. Calculate the distance traveled by the first automobile:
- Speed of the first automobile = 40 miles per hour
- Time traveled = 5 hours
- Distance = Speed × Time
- Therefore, the distance traveled by the first automobile = 40 miles/hour × 5 hours = 200 miles.

2. Calculate the distance traveled by the second automobile:
- Speed of the second automobile = 55 miles per hour
- Time traveled = 5 hours
- Distance = Speed × Time
- Therefore, the distance traveled by the second automobile = 55 miles/hour × 5 hours = 275 miles.

3. Determine the difference in distance traveled by the two automobiles:
- Distance traveled by the second automobile = 275 miles
- Distance traveled by the first automobile = 200 miles
- Difference in distance = Distance traveled by the second automobile - Distance traveled by the first automobile
- Therefore, the difference in distance = 275 miles - 200 miles = 75 miles.

Hence, the second automobile is 75 miles further along the route than the first automobile after 5 hours.

The correct answer is:

C. [tex]\((55 \times 5)-(40 \times 5)\)[/tex]