Year 7 Speed, Distance and Time Worksheet — Level 3 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 7 ratio & rates worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Ratio & RatesYear 7 Speed, Distance and Time Worksheet — Level 3 — Practice Set 4 — Answers
Use speed = distance ÷ time, distance = speed × time and time = distance ÷ speed. Change minutes to hours (÷ 60) before calculating.
1.Ruby travels 180 km in 1 hour 30 minutes. What is the average speed in km/h?
Answer: 120 km/h
- time = 1.5 h
- speed = distance ÷ time = 180 ÷ 1.5
- = 120 km/h
2.A car travels 90 km at an average speed of 120 km/h. How long does the trip take?
Answer: 45 minutes
- time = distance ÷ speed = 90 ÷ 120
- = 0.75 h = 45 minutes
3.A car travels 20 km at an average speed of 30 km/h. How long does the trip take?
Answer: 40 minutes
- time = distance ÷ speed = 20 ÷ 30
- = 0.6667 h = 40 minutes
4.A train travels at 90 km/h for 40 minutes. How far does it travel?
Answer: 60 km
- time = 0.6667 h
- distance = speed × time = 90 × 0.6667
- = 60 km
5.A train travels at 30 km/h for 20 minutes. How far does it travel?
Answer: 10 km
- time = 0.3333 h
- distance = speed × time = 30 × 0.3333
- = 10 km
6.A train travels at 60 km/h for 50 minutes. How far does it travel?
Answer: 50 km
- time = 0.8333 h
- distance = speed × time = 60 × 0.8333
- = 50 km
7.A train travels at 120 km/h for 50 minutes. How far does it travel?
Answer: 100 km
- time = 0.8333 h
- distance = speed × time = 120 × 0.8333
- = 100 km
8.Lucas travels 60 km in 40 minutes. What is the average speed in km/h?
Answer: 90 km/h
- time = 0.6667 h
- speed = distance ÷ time = 60 ÷ 0.6667
- = 90 km/h
9.Ruby 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
10.A train travels at 60 km/h for 1 hour 40 minutes. How far does it travel?
Answer: 100 km
- time = 1.6667 h
- distance = speed × time = 60 × 1.6667
- = 100 km
Marking tips
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