Question
PSLE
Marion has a number of files in three colours: orange, red and blue. 511 of the files are orange. The number of orange files is thrice the number of red files. What fraction of the files is blue?
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PSLE
Marion has a number of files in three colours: orange, red and blue. 511 of the files are orange. The number of orange files is thrice the number of red files. What fraction of the files is blue?