Monday 2 March 2020

Percentages: Discussion (p8) Practice 3

Below are the worked solution by Kang Ming and Richard respectively:




Both working have presented the working from (a) to (h) clearly. They have also made an observation based on the figures obtained correctly.

Part (h): None had presented how to obtain "A" - to compare with the given formulae.
It will involve simple algebra. The error was a result of manipulation error.





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