4MA1/2HR Jan 2023, Question 10: Compound Measures
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2HR (Higher) · Calculator · 3 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Find the density of Solid C formed by melting cylinder A (radius 3 cm, height 7 cm, mass 2000 g) and Solid B (mass 3375 g, volume 450 cm³), giving the answer to one decimal place.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 1Volume of A = π × 3² × 7 = 63π ≈ 197.92 cm³
- 2Total mass = 2000 + 3375 = 5375 g
- 3Total volume = 197.92 + 450 = 647.92 cm³
- 4Density = 5375 ÷ 647.92 = 8.29… ≈ 8.3 g/cm³
Answer8.3
Stuck on a step? Read the free lesson: Compound Measures
Practise more compound measures questions
Real 4MA1 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on compound measures
Also searched as: 4MA1 2HR January 2023 · 4MA1/2HR · 4ma1 jan23 2hr · question 10.
Lemmara is an independent study tool, not affiliated with or endorsed by Pearson Edexcel. The worked solutions are Lemmara’s own.