Let's solve each of these
speed and distance word problems step by step using the basic formula:
>
Distance = Speed × Time
> or rearranged:
>
Time = Distance ÷ Speed
>
Speed = Distance ÷ Time
---
1. Yesterday I drove 9 hours at a speed of 120 km/h. How many kilometers did I drive?
We use:
Distance = Speed × Time
- Speed = 120 km/h
- Time = 9 hours
$$
\text{Distance} = 120 \times 9 = 1,080 \text{ km}
$$
✔ Answer: 1,080 kilometers
---
2. A UFO has a speed of 3,000 km/h. The distance between A and B is 7,500 km. How long will it take the UFO to fly from A to B?
Use:
Time = Distance ÷ Speed
- Distance = 7,500 km
- Speed = 3,000 km/h
$$
\text{Time} = \frac{7,500}{3,000} = 2.5 \text{ hours}
$$
Convert 0.5 hours to minutes:
0.5 × 60 = 30 minutes
So, 2.5 hours =
2 hours and 30 minutes
✔ Answer: 2.5 hours (or 2 hours 30 minutes)
---
3. The distance between my house and work is 50 km. If I go by motorbike at an average speed of 25 km/h, how long will this distance take me?
Use:
Time = Distance ÷ Speed
- Distance = 50 km
- Speed = 25 km/h
$$
\text{Time} = \frac{50}{25} = 2 \text{ hours}
$$
✔ Answer: 2 hours
---
4. An airplane flies at an average speed of 1,000 km/h. The distance between London and New York is 5,500 km. How long will it take the airplane to travel between the 2 cities?
Use:
Time = Distance ÷ Speed
- Distance = 5,500 km
- Speed = 1,000 km/h
$$
\text{Time} = \frac{5,500}{1,000} = 5.5 \text{ hours}
$$
0.5 hours = 30 minutes → So, 5.5 hours =
5 hours and 30 minutes
✔ Answer: 5.5 hours (or 5 hours 30 minutes)
---
5. Yesterday I walked 12 kilometers in the park at an average speed of 2.5 km/h. For how long did I walk in the park?
Use:
Time = Distance ÷ Speed
- Distance = 12 km
- Speed = 2.5 km/h
$$
\text{Time} = \frac{12}{2.5} = 4.8 \text{ hours}
$$
Now convert 0.8 hours to minutes:
0.8 × 60 = 48 minutes
So, 4.8 hours =
4 hours and 48 minutes
✔ Answer: 4.8 hours (or 4 hours 48 minutes)
---
6. The distance between Amsterdam and Paris is 500 km. It will take a TGV train 2.5 hours to travel between the 2 cities. How fast is this train?
Use:
Speed = Distance ÷ Time
- Distance = 500 km
- Time = 2.5 hours
$$
\text{Speed} = \frac{500}{2.5} = 200 \text{ km/h}
$$
✔ Answer: 200 km/h
---
✔ Final Answers Summary:
1.
1,080 km
2.
2.5 hours (2 h 30 min)
3.
2 hours
4.
5.5 hours (5 h 30 min)
5.
4.8 hours (4 h 48 min)
6.
200 km/h
Let me know if you'd like this formatted as a printable worksheet with solutions!
Parent Tip: Review the logic above to help your child master the concept of average speed worksheet.
