4MA1/1H Jan 2020, Question 13: Compound Measures
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1H (Higher) · Calculator · 4 marks
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The question, in short
A cube with edges w cm rests on a table, exerting 56 N and 0.14 N/cm²; use pressure = force ÷ area to work out the cube's volume.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 4 marks
- 1Area of one face = force ÷ pressure = 56 ÷ 0.14 = 400 cm²
- 2w² = 400, so w = 20 cm
- 3Volume = 20 × 20 × 20 = 8000 cm³
Answer8000
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