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0580/31 May/Jun 2025, Question 23: Percentage Increases and Decreases

Cambridge IGCSE Mathematics 0580 · Paper 31 (Core) · Calculator · 2 marks

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The question, in short

Calculate the percentage increase when an island's population rises from 18 400 to 19 780.

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

Solution · 2 marks

  1. 1Increase = 19 780 − 18 400 = 1380
  2. 21380 ÷ 18 400 × 100 = 7.5%

Answer7.5

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