8th Grade Speed, Distance and Time Worksheet — Level 3 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 8th Grade ratios & rates worksheet.
Success TutoringWorksheetsAnswer sheet8th Grade · Mathematics · Ratio & Rates8th Grade 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.A car travels 200 km at an average speed of 120 km/h. How long does the trip take?
Answer: 1 hour 40 minutes
- time = distance ÷ speed = 200 ÷ 120
- = 1.6667 h = 1 hour 40 minutes
2.Jack travels 30 km in 20 minutes. What is the average speed in km/h?
Answer: 90 km/h
- time = 0.3333 h
- speed = distance ÷ time = 30 ÷ 0.3333
- = 90 km/h
3.Zoe 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
4.A train travels at 60 km/h for 40 minutes. How far does it travel?
Answer: 40 km
- time = 0.6667 h
- distance = speed × time = 60 × 0.6667
- = 40 km
5.Chloe 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 car travels 112.5 km at an average speed of 90 km/h. How long does the trip take?
Answer: 1 hour 15 minutes
- time = distance ÷ speed = 112.5 ÷ 90
- = 1.25 h = 1 hour 15 minutes
7.Jack 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
8.A train travels at 60 km/h for 2 hours 15 minutes. How far does it travel?
Answer: 135 km
- time = 2.25 h
- distance = speed × time = 60 × 2.25
- = 135 km
9.Harper 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
10.A train travels at 90 km/h for 45 minutes. How far does it travel?
Answer: 67.5 km
- time = 0.75 h
- distance = speed × time = 90 × 0.75
- = 67.5 km
Marking tips
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