0580/21 Oct/Nov 2022, Question 24: Calculating with Bounds
Cambridge IGCSE Mathematics 0580 · Paper 21 (Extended) · Calculator · 2 marks
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The question, in short
Two runners' 200 m times, given to the nearest second as 36 s and 39 s, are used to find the largest possible gap between them.
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Solution · 2 marks
- 1Upper bound of Wilfred's time = 39.5
- 2Lower bound of Violet's time = 35.5
- 3Upper bound of difference = 39.5 − 35.5 = 4 s
Answer4
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