9th Grade Speed, Distance and Time Worksheet — Level 3 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 9th Grade ratios & rates worksheet.
Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Ratio & Rates9th Grade 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.Layla travels 40 km in 20 minutes. What is the average speed in km/h?
Answer: 120 km/h
- time = 0.3333 h
- speed = distance ÷ time = 40 ÷ 0.3333
- = 120 km/h
2.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
3.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
4.Layla travels 75 km in 1 hour 15 minutes. What is the average speed in km/h?
Answer: 60 km/h
- time = 1.25 h
- speed = distance ÷ time = 75 ÷ 1.25
- = 60 km/h
5.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
6.Grace travels 80 km in 40 minutes. What is the average speed in km/h?
Answer: 120 km/h
- time = 0.6667 h
- speed = distance ÷ time = 80 ÷ 0.6667
- = 120 km/h
7.A train travels at 90 km/h for 1 hour 40 minutes. How far does it travel?
Answer: 150 km
- time = 1.6667 h
- distance = speed × time = 90 × 1.6667
- = 150 km
8.A train travels at 60 km/h for 1 hour 15 minutes. How far does it travel?
Answer: 75 km
- time = 1.25 h
- distance = speed × time = 60 × 1.25
- = 75 km
9.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
10.Ethan 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
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