Question
PSLE
Risa has a number of pens in three colours: orange, green and red. 12 of the pens are orange. The number of orange pens is four times the number of green pens. What fraction of the pens is red?
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PSLE
Risa has a number of pens in three colours: orange, green and red. 12 of the pens are orange. The number of orange pens is four times the number of green pens. What fraction of the pens is red?