0580/11 May/Jun 2021, Question 15: Upper and Lower Bounds
Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Calculator · 2 marks
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The question, in short
The rope length l is 5.67 m to the nearest centimetre. Complete the inequality showing the range of possible values for l.
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Solution · 2 marks
- 1Nearest centimetre: half of 0.01 m is 0.005 m
- 25.67 − 0.005 = 5.665 and 5.67 + 0.005 = 5.675
- 35.665 ≤ l < 5.675
Answer5.665 ≤ l < 5.675
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