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Year 8 Speed, Distance and Time Worksheet — Level 3 — Practice Set 4 — Answers

Answer sheet with worked solutions for the Year 8 ratio & rates worksheet.

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Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Ratio & Rates

Year 8 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 135 km at an average speed of 90 km/h. How long does the trip take?

Answer: 1 hour 30 minutes

  1. time = distance ÷ speed = 135 ÷ 90
  2. = 1.5 h = 1 hour 30 minutes
2.Ruby travels 150 km in 1 hour 15 minutes. What is the average speed in km/h?

Answer: 120 km/h

  1. time = 1.25 h
  2. speed = distance ÷ time = 150 ÷ 1.25
  3. = 120 km/h
3.Archie travels 60 km in 40 minutes. What is the average speed in km/h?

Answer: 90 km/h

  1. time = 0.6667 h
  2. speed = distance ÷ time = 60 ÷ 0.6667
  3. = 90 km/h
4.A car travels 45 km at an average speed of 30 km/h. How long does the trip take?

Answer: 1 hour 30 minutes

  1. time = distance ÷ speed = 45 ÷ 30
  2. = 1.5 h = 1 hour 30 minutes
5.Archie travels 100 km in 50 minutes. What is the average speed in km/h?

Answer: 120 km/h

  1. time = 0.8333 h
  2. speed = distance ÷ time = 100 ÷ 0.8333
  3. = 120 km/h
6.A car travels 40 km at an average speed of 120 km/h. How long does the trip take?

Answer: 20 minutes

  1. time = distance ÷ speed = 40 ÷ 120
  2. = 0.3333 h = 20 minutes
7.Kai travels 10 km in 20 minutes. What is the average speed in km/h?

Answer: 30 km/h

  1. time = 0.3333 h
  2. speed = distance ÷ time = 10 ÷ 0.3333
  3. = 30 km/h
8.Mia travels 75 km in 50 minutes. What is the average speed in km/h?

Answer: 90 km/h

  1. time = 0.8333 h
  2. speed = distance ÷ time = 75 ÷ 0.8333
  3. = 90 km/h
9.A train travels at 120 km/h for 45 minutes. How far does it travel?

Answer: 90 km

  1. time = 0.75 h
  2. distance = speed × time = 120 × 0.75
  3. = 90 km
10.A train travels at 90 km/h for 1 hour 30 minutes. How far does it travel?

Answer: 135 km

  1. time = 1.5 h
  2. distance = speed × time = 90 × 1.5
  3. = 135 km
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