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4024/12 Oct/Nov 2021, Question 15: Percentage Increases and Decreases

Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 2 marks

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The question, in short

Calculate the percentage decrease when a bicycle's value falls from $200 to $160.

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

Solution · 2 marks

  1. 1Decrease = 200 − 160 = $40
  2. 2Percentage decrease = 40/200 × 100 = 20%

Answer20

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