4MA1/1H Jun 2025, Question 7: Converting speed units
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1H (Higher) · Calculator · 3 marks
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The question, in short
Change a speed of 50x metres per second into kilometres per hour.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 1V = πr²h
- 23892 = π × 8² × h
- 3π × 64 = 201.06…
- 4h = 3892 ÷ 201.06… = 19.357…
- 5h = 19.4 (1 d.p.)
Answer19.4
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