Year 8 Speed, Distance and Time Worksheet — Level 2 — 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 2 — Practice Set 3 — Answers
Use speed = distance ÷ time, distance = speed × time and time = distance ÷ speed. Change minutes to hours (÷ 60) before calculating.
1.Grace travels 45 km in 30 minutes. What is the average speed in km/h?
Answer: 90 km/h
- time = 0.5 h
- speed = distance ÷ time = 45 ÷ 0.5
- = 90 km/h
2.Ruby travels 125 km in 2 hours 30 minutes. What is the average speed in km/h?
Answer: 50 km/h
- time = 2.5 h
- speed = distance ÷ time = 125 ÷ 2.5
- = 50 km/h
3.A train travels at 90 km/h for 15 minutes. How far does it travel?
Answer: 22.5 km
- time = 0.25 h
- distance = speed × time = 90 × 0.25
- = 22.5 km
4.A train travels at 20 km/h for 2 hours 30 minutes. How far does it travel?
Answer: 50 km
- time = 2.5 h
- distance = speed × time = 20 × 2.5
- = 50 km
5.A car travels 42.5 km at an average speed of 85 km/h. How long does the trip take?
Answer: 30 minutes
- time = distance ÷ speed = 42.5 ÷ 85
- = 0.5 h = 30 minutes
6.Olivia travels 18.75 km in 45 minutes. What is the average speed in km/h?
Answer: 25 km/h
- time = 0.75 h
- speed = distance ÷ time = 18.75 ÷ 0.75
- = 25 km/h
7.A train travels at 120 km/h for 15 minutes. How far does it travel?
Answer: 30 km
- time = 0.25 h
- distance = speed × time = 120 × 0.25
- = 30 km
8.Max travels 67.5 km in 1 hour 30 minutes. What is the average speed in km/h?
Answer: 45 km/h
- time = 1.5 h
- speed = distance ÷ time = 67.5 ÷ 1.5
- = 45 km/h
9.A car travels 23.75 km at an average speed of 95 km/h. How long does the trip take?
Answer: 15 minutes
- time = distance ÷ speed = 23.75 ÷ 95
- = 0.25 h = 15 minutes
10.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
Marking tips
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