Question
PSLE
Elyse has a number of pens in three colours: green, blue and brown. 511 of the pens are green. The number of green pens is four times the number of blue pens. What fraction of the pens is brown?
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PSLE
Elyse has a number of pens in three colours: green, blue and brown. 511 of the pens are green. The number of green pens is four times the number of blue pens. What fraction of the pens is brown?