Question
PSLE
Usha has a number of files in three colours: red, green and brown. 811 of the files are red. The number of red files is four times the number of green files. What fraction of the files is brown?
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PSLE
Usha has a number of files in three colours: red, green and brown. 811 of the files are red. The number of red files is four times the number of green files. What fraction of the files is brown?