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Topic: Ratio and Proportion (Foundation - Unit 1)

Specification References: N3.3

N3.3 Solve problems involving ratio and proportion, including the unitary method of solution.


Candidates should be able to:

  • use ratio and proportion to solve statistical and number problems

Notes

This is part of the core number work required across all units.
Candidates should note that division in a given ratio is assessed in Unit 2 only.

Candidates may use the unitary method, scaling, multiplying by a fraction or any other valid method.

Examples

  1. Jen and Kim pay for a present for their mum in the ratio 7 : 9.
    Jen pays £21.
    How much did the present cost?

view more examples

  1. The proportion of winning tickets in a raffle is 0.02.
    Work out the probability of not winning if you buy the first ticket.

  2. From a bar chart showing the results for girls (small amount of discrete data):
    The ratio of the means for the girls and the boys is 1 : 2.
    Draw a possible bar chart for the boys.