Question
PSLE
Yen has a number of staplers in three colours: green, purple and yellow. 19 of the staplers are green. The number of green staplers is thrice the number of purple staplers. What fraction of the staplers is yellow?
2 m

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PSLE
Yen has a number of staplers in three colours: green, purple and yellow. 19 of the staplers are green. The number of green staplers is thrice the number of purple staplers. What fraction of the staplers is yellow?