don steward
mathematics teaching 10 ~ 16

Friday, 8 April 2016

generalising GCSE questions (4)

a question from AQA poses the interesting problem of determining whether it is a better deal to have 20% more cereal for the same price or the same amount for a 15% reduction in price:

the general case is probably difficult to consider

so see what current prices cereal is selling for and use this as an example
 for example

one way that the problem can be considered generally

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