Ratio and Rate

Chapter 9 Study Notes

Ratio and Rate

This chapter covers how to simplify ratios and find equivalent ratios, divide a quantity in a given ratio, solve problems involving ratios of two and three quantities.

Secondary 18 sectionsO-Level Mathematics (4052)

Learning Outcomes

  • Simplify ratios and find equivalent ratios
  • Divide a quantity in a given ratio
  • Solve problems involving ratios of two and three quantities
  • Calculate unit rates and compare rates
  • Apply simple interest formula I=PRT/100I = PRT/100
  • Solve problems involving hire purchase and currency exchange
  • Use the relationship D=S×TD = S \times T to solve speed problems
  • Convert between km/h and m/s

Start reading

8 sections, beginning with Why Ratio and Rate Matter.

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Practise this chapter

Questions on Ratio and Rate, marked as you go, with the working shown.

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