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4MA1/2H Jun 2020, Question 5: Percentage Increases and Decreases

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2H (Higher) · Calculator · 6 marks

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The question, in short

Calculate a salary after a 4% increase from 3 130 000 JPY, and a car's value after 15% annual depreciation over 3 years from 750 000 JPY, rounded to the nearest JPY.

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Part (a) · 3 marks

Find Himari's salary after a 4% increase on 3 130 000 JPY.

  1. 1A 4% increase means multiply by 1.04 (100% + 4%).
  2. 21.04 × 3 130 000 = 3 255 200

Answer3 255 200

Part (b) · 3 marks

Find the car's value at the end of 3 years after 15% yearly depreciation from 750 000 JPY, to the nearest JPY.

  1. 115% depreciation: multiplier 0.85
  2. 2After 3 years: 750 000 × 0.85³
  3. 3= 750 000 × 0.614125 = 460 593.75
  4. 4To the nearest JPY: 460 594

Answer460 594

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