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Math 5 · Unit 13: Ratio and proportion · Cambridge Primary Maths Stage 5

13.1 Ratio and proportion

15 questions · e.g. For every 2 red beads there are 3 blue beads. What is …

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Questions

  1. 1. For every 2 red beads there are 3 blue beads. What is the ratio of red to blue?

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  2. 2. For every 2 red there are 3 blue. What proportion are red?

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  3. 3. For every 2 red beads there are 3 blue. A necklace has 10 beads. How many red?

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  4. 4. A recipe for 4 people uses 200 g of flour. How much for 8 people?

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  5. 5. A recipe for 2 uses 3 eggs. How many eggs for 6 people?

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  6. 6. In a class, 1 in every 4 children wears glasses. There are 28 children. How many wear glasses?

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  7. 7. 3 apples cost 60c. How much do 5 apples cost?

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  8. 8. Mix 1 cup of juice for every 4 cups of water. How much water for 3 cups of juice?

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  9. 9. Boys to girls is 3 : 4. There are 12 boys. How many girls?

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  10. 10. A pattern is ●●○ repeated. What proportion is ○?

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  11. 11. A pattern is ●●○ repeated. What is the ratio of ● to ○?

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  12. 12. 5 pencils cost $2. How much for 20 pencils?

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  13. 13. A map uses 1 cm for 5 km. Two towns are 4 cm apart. How far is that?

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  14. 14. For every 5 sweets, 2 are red. In 30 sweets, how many are red?

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  15. 15. A paint mix is 1 white : 3 blue. How much blue for 2 litres of white?

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