Question
PSLE
Sabrina has a number of pens in three colours: red, blue and purple. 27 of the pens are red. The number of red pens is thrice the number of blue pens. What fraction of the pens is purple?
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PSLE
Sabrina has a number of pens in three colours: red, blue and purple. 27 of the pens are red. The number of red pens is thrice the number of blue pens. What fraction of the pens is purple?