Question
PSLE
Olivia has a number of files in three colours: yellow, brown and red. 27 of the files are yellow. The number of yellow files is four times the number of brown files. What fraction of the files is red?
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PSLE
Olivia has a number of files in three colours: yellow, brown and red. 27 of the files are yellow. The number of yellow files is four times the number of brown files. What fraction of the files is red?