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Cambridge IGCSE Mathematics practice

exam practice - Understand and apply the concepts of ratio and proportion to: simplify ratios, such as converting 20 : 30 : 40 to its simplest form of 2 : 3 : 4; divide a quantity according to a specified ratio; and utilize proportional reasoning in various contexts, including modifying recipes, interpreting map scales, and identifying the best value in a situation. - Ratio and proportion

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At a glance

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Topic

Ratio and proportion

Exam-style question

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Paper 2Core or Extended Mathematics2 marks

Using ratios in recipes.

Description

Adjusting a Recipe

A recipe requires a ratio of 2:5 for oil to vinegar. If you want to use 15 ml of vinegar, how much oil do you need?

  1. a

    Calculate Determine the amount of oil needed.

    Aim for approximately 2 distinct marking points.

    [2]

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Maths method check

  • Topic focus: Ratio and proportion.
  • Question style: structured_mathematics.
  • Reasoning demand: reasoning.
  • Check the operation, notation, units, and final answer form against the question before moving on.

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Question 1 of 5

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Paper 2 structured question: Ratio and proportion

Paper 2Core or Extended Mathematics2 marks

Description

Dividing Apples

You have 48 apples that you want to divide between two friends in the ratio 3:5.

  1. a

    Calculate How many apples does each friend receive?

    Aim for approximately 2 distinct marking points.

    [2]