0580/23 Oct/Nov 2024, Question 24: Upper and Lower Bounds
Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Calculator · 3 marks
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The question, in short
Using area 150 m² and length 22 m, each rounded to the nearest unit, find the upper bound of the rectangle's width.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 1Upper bound of area = 150 + 0.5 = 150.5 m²
- 2Lower bound of length = 22 − 0.5 = 21.5 m
- 3Upper bound of width = 150.5 ÷ 21.5 = 7 m
Answer7
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Also searched as: 0580/23/O/N/24 · 0580_w24_qp_23 · 0580 w24 23 · question 24.
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