4MA1/2HR Jun 2024, Question 19: Upper and Lower Bounds
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2HR (Higher) · Calculator · 3 marks
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The question, in short
Using average speed 19 km/h and time 1.5 hours, each rounded, find the upper bound of the distance travelled, giving the answer to 3 significant figures.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 1Upper bounds: speed 19.5 km/h, time 1.55 hours
- 2Distance = speed × time = 19.5 × 1.55 = 30.225
- 3To 3 s.f.: 30.2
Answer30.2
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