4MA1/2FR Jan 2020, Question 23: Compound Measures
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2FR (Foundation) · Calculator · 3 marks
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The question, in short
A cuboid box rests on a table with contact face 1.2 m by x m, exerting 27 N at 30 N/m²; use pressure = force ÷ area to work out x.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 1Area = force ÷ pressure = 27 ÷ 30 = 0.9 m²
- 2Area = 1.2 × x, so 1.2x = 0.9
- 3x = 0.9 ÷ 1.2 = 0.75
Answer0.75
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