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4024/12 May/Jun 2020, Question 4: Introduction to Percentages

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

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The question, in short

Convert 68% to a fraction in simplest form, and find the fraction of balls that are red when red to blue balls are in the ratio 3 : 5.

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Part (a) · 1 mark

Express 68% as a fraction reduced to its lowest terms.

  1. 168% = 68/100
  2. 2= 17/25

Answer17/25

Part (b) · 1 mark

Given red to blue balls in ratio 3 : 5, state the fraction of all balls that are red.

  1. 1Total parts = 3 + 5 = 8
  2. 2Fraction red = 3/8

Answer3/8

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