A person walks 5 km in 1 hour and then runs 10 km in 1 hour. What is the average speed for the entire journey? (2022)
Practice Questions
1 question
Q1
A person walks 5 km in 1 hour and then runs 10 km in 1 hour. What is the average speed for the entire journey? (2022)
7.5 km/h
8 km/h
8.5 km/h
9 km/h
Total distance = 5 km + 10 km = 15 km. Total time = 1 hour + 1 hour = 2 hours. Average speed = Total distance / Total time = 15 km / 2 hours = 7.5 km/h.
Questions & Step-by-step Solutions
1 item
Q
Q: A person walks 5 km in 1 hour and then runs 10 km in 1 hour. What is the average speed for the entire journey? (2022)
Solution: Total distance = 5 km + 10 km = 15 km. Total time = 1 hour + 1 hour = 2 hours. Average speed = Total distance / Total time = 15 km / 2 hours = 7.5 km/h.
