Year 9 Speed, Distance and Time Worksheet — Level 3 — Practice Set 3 — 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 3 — Practice Set 3 — Answers
Use speed = distance ÷ time, distance = speed × time and time = distance ÷ speed. Change minutes to hours (÷ 60) before calculating.
1.Noah travels 135 km in 2 hours 15 minutes. What is the average speed in km/h?
Answer: 60 km/h
- time = 2.25 h
- speed = distance ÷ time = 135 ÷ 2.25
- = 60 km/h
2.A car travels 100 km at an average speed of 120 km/h. How long does the trip take?
Answer: 50 minutes
- time = distance ÷ speed = 100 ÷ 120
- = 0.8333 h = 50 minutes
3.Archie travels 90 km in 1 hour 30 minutes. What is the average speed in km/h?
Answer: 60 km/h
- time = 1.5 h
- speed = distance ÷ time = 90 ÷ 1.5
- = 60 km/h
4.A car travels 45 km at an average speed of 30 km/h. How long does the trip take?
Answer: 1 hour 30 minutes
- time = distance ÷ speed = 45 ÷ 30
- = 1.5 h = 1 hour 30 minutes
5.Priya travels 112.5 km in 1 hour 15 minutes. What is the average speed in km/h?
Answer: 90 km/h
- time = 1.25 h
- speed = distance ÷ time = 112.5 ÷ 1.25
- = 90 km/h
6.A train travels at 120 km/h for 40 minutes. How far does it travel?
Answer: 80 km
- time = 0.6667 h
- distance = speed × time = 120 × 0.6667
- = 80 km
7.Aisha travels 150 km in 1 hour 15 minutes. What is the average speed in km/h?
Answer: 120 km/h
- time = 1.25 h
- speed = distance ÷ time = 150 ÷ 1.25
- = 120 km/h
8.A car travels 90 km at an average speed of 60 km/h. How long does the trip take?
Answer: 1 hour 30 minutes
- time = distance ÷ speed = 90 ÷ 60
- = 1.5 h = 1 hour 30 minutes
9.Chloe travels 75 km in 50 minutes. What is the average speed in km/h?
Answer: 90 km/h
- time = 0.8333 h
- speed = distance ÷ time = 75 ÷ 0.8333
- = 90 km/h
10.A car travels 22.5 km at an average speed of 30 km/h. How long does the trip take?
Answer: 45 minutes
- time = distance ÷ speed = 22.5 ÷ 30
- = 0.75 h = 45 minutes
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.
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