8th Grade Speed, Distance and Time Worksheet — Level 2 — Practice Set 3 — 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 2 — 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 30 km at an average speed of 40 km/h. How long does the trip take?
Answer: 45 minutes
- time = distance ÷ speed = 30 ÷ 40
- = 0.75 h = 45 minutes
2.A car travels 22.5 km at an average speed of 90 km/h. How long does the trip take?
Answer: 15 minutes
- time = distance ÷ speed = 22.5 ÷ 90
- = 0.25 h = 15 minutes
3.A train travels at 50 km/h for 45 minutes. How far does it travel?
Answer: 37.5 km
- time = 0.75 h
- distance = speed × time = 50 × 0.75
- = 37.5 km
4.A car travels 82.5 km at an average speed of 55 km/h. How long does the trip take?
Answer: 1 hour 30 minutes
- time = distance ÷ speed = 82.5 ÷ 55
- = 1.5 h = 1 hour 30 minutes
5.A car travels 143.75 km at an average speed of 115 km/h. How long does the trip take?
Answer: 1 hour 15 minutes
- time = distance ÷ speed = 143.75 ÷ 115
- = 1.25 h = 1 hour 15 minutes
6.A car travels 12.5 km at an average speed of 25 km/h. How long does the trip take?
Answer: 30 minutes
- time = distance ÷ speed = 12.5 ÷ 25
- = 0.5 h = 30 minutes
7.A car travels 50 km at an average speed of 20 km/h. How long does the trip take?
Answer: 2 hours 30 minutes
- time = distance ÷ speed = 50 ÷ 20
- = 2.5 h = 2 hours 30 minutes
8.Priya travels 82.5 km in 1 hour 30 minutes. What is the average speed in km/h?
Answer: 55 km/h
- time = 1.5 h
- speed = distance ÷ time = 82.5 ÷ 1.5
- = 55 km/h
9.A car travels 15 km at an average speed of 60 km/h. How long does the trip take?
Answer: 15 minutes
- time = distance ÷ speed = 15 ÷ 60
- = 0.25 h = 15 minutes
10.A train travels at 75 km/h for 1 hour 30 minutes. How far does it travel?
Answer: 112.5 km
- time = 1.5 h
- distance = speed × time = 75 × 1.5
- = 112.5 km
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.