4MA1/1HR Jun 2018, Question 11: Unit Conversions
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1HR (Higher) · Calculator · 3 marks
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The question, in short
Convert a speed of 72 kilometres per hour into metres per second.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 172 km = 72 × 1000 = 72 000 m
- 21 hour = 60 × 60 = 3600 seconds
- 372 000 ÷ 3600 = 20 m/s
Answer20 metres per second
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