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Ratios And Proportion
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Ratios And Proportion

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Ratios illustrated: dividing in a ratio and calculating the value of one part (or the whole) given the value of another part. GCSE Maths and Level 2 Maths.

Ratios illustrated: dividing in a ratio and calculating the value of one part (or the whole) given the value of another part. GCSE Maths and Level 2 Maths.

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  • 1. Ratios and proportion
  • 2. 3:2
  • 3. 3:2 3 parts water
  • 4. 3:2 2 parts orange juice 3 parts water
  • 5. 3:2 2 parts orange juice 3 parts water 3 + 2 = 5 equal parts…
  • 6. Find value of one share if you know the value of the whole amount…
  • 7. £350 £??
  • 8. £350 £?? How did you work it out?
  • 9. £350 £70 350 ÷ 5 = 70
  • 10. £350 £70 £70 £70
  • 11. £350 £70 £70 £70 3  70 = 210
  • 12. £350 £210
  • 13. £350 £210 £??
  • 14. Find value of one share if you know the value of the other share…
  • 15. £20
  • 16. £20 ??
  • 17. £20 £30
  • 18. £20 £30 How did you work it out?
  • 19. Try these problems, some in pictures and some in words…
  • 20. Jim’s Jemima’s Write down the ratio using the colon notation…
  • 21. £800 Jim’s Jemima’s Find the value of Jim and Jemima’s shares…
  • 22. £?? £280 Find the value of the whole amount and the missing share… £??
  • 23. Write down the ratio using the smallest whole numbers you can…
  • 24. How much cous-cous and water do you need for two servings?
  • 25. Write the ratio of (dry) cous-cous to water in its lowest terms
  • 26. Algernon wants to make 800g of cooked cous-cous. How much dry cous-cous does he need? And how much water in ml?