Exam-Style Question on Percentages
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 227. This question is similar to one that appeared on a GCSE Higher paper (specimen) for 2017. The use of a calculator is allowed.
In 2009 the price of a Big Mac was £2.29.
In 2013 the price of a Big Mac had risen to £2.69.
(a) Work out the percentage increase in the price of this snack over the four years.
(b) Express the price in 2009 as a percentage of the 2013 price.
(c) By what percentage must the 2013 price be discounted to equal the 2009 price?
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