Question
PSLE
Mary has a number of staplers in three colours: green, blue and brown. 411 of the staplers are green. The number of green staplers is thrice the number of blue staplers. What fraction of the staplers is brown?
2 m

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PSLE
Mary has a number of staplers in three colours: green, blue and brown. 411 of the staplers are green. The number of green staplers is thrice the number of blue staplers. What fraction of the staplers is brown?