Question
PSLE
Pamela has a number of markers in three colours: purple, red and yellow. 15 of the markers are purple. The number of purple markers is thrice the number of red markers. What fraction of the markers is yellow?
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PSLE
Pamela has a number of markers in three colours: purple, red and yellow. 15 of the markers are purple. The number of purple markers is thrice the number of red markers. What fraction of the markers is yellow?