Year 8 Speed, Distance and Time Worksheet — Level 3 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 8 ratio & rates worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Ratio & RatesYear 8 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.A car travels 20 km at an average speed of 60 km/h. How long does the trip take?
Answer: 20 minutes
- time = distance ÷ speed = 20 ÷ 60
- = 0.3333 h = 20 minutes
2.A car travels 135 km at an average speed of 60 km/h. How long does the trip take?
Answer: 2 hours 15 minutes
- time = distance ÷ speed = 135 ÷ 60
- = 2.25 h = 2 hours 15 minutes
3.Jack 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
4.A car travels 100 km at an average speed of 60 km/h. How long does the trip take?
Answer: 1 hour 40 minutes
- time = distance ÷ speed = 100 ÷ 60
- = 1.6667 h = 1 hour 40 minutes
5.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
6.Max travels 20 km in 40 minutes. What is the average speed in km/h?
Answer: 30 km/h
- time = 0.6667 h
- speed = distance ÷ time = 20 ÷ 0.6667
- = 30 km/h
7.A train travels at 120 km/h for 2 hours 15 minutes. How far does it travel?
Answer: 270 km
- time = 2.25 h
- distance = speed × time = 120 × 2.25
- = 270 km
8.Liam travels 135 km in 1 hour 30 minutes. What is the average speed in km/h?
Answer: 90 km/h
- time = 1.5 h
- speed = distance ÷ time = 135 ÷ 1.5
- = 90 km/h
9.A car travels 80 km at an average speed of 120 km/h. How long does the trip take?
Answer: 40 minutes
- time = distance ÷ speed = 80 ÷ 120
- = 0.6667 h = 40 minutes
10.A train travels at 30 km/h for 40 minutes. How far does it travel?
Answer: 20 km
- time = 0.6667 h
- distance = speed × time = 30 × 0.6667
- = 20 km
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