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0580/13 Oct/Nov 2024, Question 20: Upper and Lower Bounds

Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Calculator · 2 marks

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The question, in short

Given that w = 463.9 grams rounded to 1 decimal place, complete the double inequality showing the range of possible values for w.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Solution · 2 marks

  1. 1Half of 0.1 g is 0.05 g
  2. 2463.9 − 0.05 = 463.85 and 463.9 + 0.05 = 463.95
  3. 3463.85 ≤ w < 463.95

Answer463.85 ≤ w < 463.95

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Also searched as: 0580/13/O/N/24 · 0580_w24_qp_13 · 0580 w24 13 · question 20.
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