Year 9 Speed, Distance and Time Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 9 ratio & rates worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · Ratio & RatesYear 9 Speed, Distance and Time Worksheet — Level 2 — Practice Set 4 — Answers
Use speed = distance ÷ time, distance = speed × time and time = distance ÷ speed. Change minutes to hours (÷ 60) before calculating.
1.Ethan travels 112.5 km in 1 hour 30 minutes. What is the average speed in km/h?
Answer: 75 km/h
- time = 1.5 h
- speed = distance ÷ time = 112.5 ÷ 1.5
- = 75 km/h
2.A car travels 143.75 km at an average speed of 115 km/h. How long does the trip take?
Answer: 1 hour 15 minutes
- time = distance ÷ speed = 143.75 ÷ 115
- = 1.25 h = 1 hour 15 minutes
3.A car travels 75 km at an average speed of 50 km/h. How long does the trip take?
Answer: 1 hour 30 minutes
- time = distance ÷ speed = 75 ÷ 50
- = 1.5 h = 1 hour 30 minutes
4.A car travels 21.25 km at an average speed of 85 km/h. How long does the trip take?
Answer: 15 minutes
- time = distance ÷ speed = 21.25 ÷ 85
- = 0.25 h = 15 minutes
5.A car travels 150 km at an average speed of 120 km/h. How long does the trip take?
Answer: 1 hour 15 minutes
- time = distance ÷ speed = 150 ÷ 120
- = 1.25 h = 1 hour 15 minutes
6.Lucas travels 45 km in 1 hour 30 minutes. What is the average speed in km/h?
Answer: 30 km/h
- time = 1.5 h
- speed = distance ÷ time = 45 ÷ 1.5
- = 30 km/h
7.Grace travels 118.75 km in 1 hour 15 minutes. What is the average speed in km/h?
Answer: 95 km/h
- time = 1.25 h
- speed = distance ÷ time = 118.75 ÷ 1.25
- = 95 km/h
8.A train travels at 75 km/h for 2 hours 30 minutes. How far does it travel?
Answer: 187.5 km
- time = 2.5 h
- distance = speed × time = 75 × 2.5
- = 187.5 km
9.A car travels 225 km at an average speed of 75 km/h. How long does the trip take?
Answer: 3 hours
- time = distance ÷ speed = 225 ÷ 75
- = 3 h = 3 hours
10.A train travels at 35 km/h for 15 minutes. How far does it travel?
Answer: 8.75 km
- time = 0.25 h
- distance = speed × time = 35 × 0.25
- = 8.75 km
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.