Question
PSLE
Roshel has a number of markers in three colours: orange, brown and red. 13 of the markers are orange. The number of orange markers is thrice the number of brown markers. What fraction of the markers is red?
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PSLE
Roshel has a number of markers in three colours: orange, brown and red. 13 of the markers are orange. The number of orange markers is thrice the number of brown markers. What fraction of the markers is red?