Let's solve each problem step by step using the basic formula for speed, distance, and time:
Formula:
$$
\text{Speed} = \frac{\text{Distance}}{\text{Time}}, \quad \text{Distance} = \text{Speed} \times \text{Time}, \quad \text{Time} = \frac{\text{Distance}}{\text{Speed}}
$$
---
1. A girl cycles for 3 hours at a speed of 40 km/h. How far did she travel?
We use:
$$
\text{Distance} = \text{Speed} \times \text{Time}
$$
$$
= 40 \, \text{km/h} \times 3 \, \text{h} = 120 \, \text{km}
$$
✔ Answer: 120 km
---
2. A train travels at a speed of 30 km/h and traveled a distance of 240 km. How long did it take the train to complete its journey?
We use:
$$
\text{Time} = \frac{\text{Distance}}{\text{Speed}}
$$
$$
= \frac{240 \, \text{km}}{30 \, \text{km/h}} = 8 \, \text{hours}
$$
✔ Answer: 8 hours
---
3. A car travels a distance of 540 km in 6 hours. What is the speed of the car?
We use:
$$
\text{Speed} = \frac{\text{Distance}}{\text{Time}}
$$
$$
= \frac{540 \, \text{km}}{6 \, \text{h}} = 90 \, \text{km/h}
$$
✔ Answer: 90 km/h
---
4. A cyclist travels 20 km in 4 hours. What is the speed of the cyclist?
$$
\text{Speed} = \frac{20 \, \text{km}}{4 \, \text{h}} = 5 \, \text{km/h}
$$
✔ Answer: 5 km/h
---
5. Jim traveled at a speed of 18 km/h for 2 hours. What was the distance covered?
$$
\text{Distance} = \text{Speed} \times \text{Time} = 18 \, \text{km/h} \times 2 \, \text{h} = 36 \, \text{km}
$$
✔ Answer: 36 km
---
✔ Final Answers:
1.
120 km
2.
8 hours
3.
90 km/h
4.
5 km/h
5.
36 km
Let me know if you'd like this formatted as a printable worksheet!
Parent Tip: Review the logic above to help your child master the concept of speed worksheet.
