0580/12 May/Jun 2022, Question 19: Upper and Lower Bounds
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 2 marks
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The question, in short
Given a rope length of 30.7 m rounded to 1 decimal place, complete the inequality showing the range of possible values for l.
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Solution · 2 marks
- 1Half of 0.1 is 0.05
- 230.7 − 0.05 = 30.65 and 30.7 + 0.05 = 30.75
- 330.65 ≤ l < 30.75
Answer30.65 ≤ l < 30.75
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