0580/12 May/Jun 2025, Question 22: Upper and Lower Bounds
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Non-calculator · 2 marks
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The question, in short
A stone's mass m is 3.2 kg, rounded to the nearest 100 g. Complete the inequality giving the lower and upper bounds for m.
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Solution · 2 marks
- 1Nearest 100 g = 0.1 kg, so half is 0.05 kg
- 23.2 − 0.05 = 3.15, 3.2 + 0.05 = 3.25
- 33.15 ≤ m < 3.25
Answer3.15 ≤ m < 3.25
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Also searched as: 0580/12/M/J/25 · 0580_s25_qp_12 · 0580 s25 12 · question 22.
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