0580/12 Oct/Nov 2025, Question 26: Upper and Lower Bounds
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Non-calculator · 2 marks
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The question, in short
Given that a rope's length l is 16.32 metres correct to 2 decimal places, complete the inequality showing the range of possible values of l.
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Solution · 2 marks
- 1Half of 0.01 is 0.005
- 216.32 − 0.005 = 16.315 and 16.32 + 0.005 = 16.325
- 316.315 ≤ l < 16.325
Answer16.315 ≤ l < 16.325
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