0580/42 Feb/Mar 2025, Question 20: Calculating with Bounds
Cambridge IGCSE Mathematics 0580 · Paper 42 (Extended) · Calculator · 3 marks
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The question, in short
Given volume 1240 cm³ to nearest 20 cm³ and mass 7800 g to nearest 100 g, find the lower bound of density using density = mass ÷ volume.
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Solution · 3 marks
- 1Lower bound of mass = 7800 − 50 = 7750 g
- 2Upper bound of volume = 1240 + 10 = 1250 cm³
- 3Lower bound of density = 7750 ÷ 1250
- 4= 6.2 g/cm³
Answer6.2
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Also searched as: 0580/42/F/M/25 · 0580_m25_qp_42 · 0580 m25 42 · question 20.
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