Steve traveled the first 2 hours of his journey at 40 mph and the last 3 hours of his journey at 80 mph. What is his average speed of travel for the entire journey?

Question

Komal · Accepted Answer

First part of the journey:   - Speed = 40 mph   - Time = 2 hours   - Distance = Speed &times; Time = 40 mph &times; 2 hours = 80 miles
Second part of the journey:   - Speed = 80 mph   - Time = 3 hours   - Distance = Speed &times; Time = 80 mph &times; 3 hours = 240 miles
Calculate the total distance and total time
- Total distance = Distance of the first part + Distance of the second part  Total distance = 80 miles + 240 miles = 320 miles
- Total time = Time of the first part + Time of the second part  Total time = 2 hours + 3 hours = 5 hours
Calculate the average speed
The average speed is given by the total distance divided by the total time.Average speed = Total distance / Total time = 320 miles / 5 hours = 64 mph
Therefore, Steve's average speed for the entire journey is 64 mph.