Question
PSLE
Reggie kept pens in boxes R and S. Box R contained four times as many pens as box S. In box R, 15 of the pens were green pens. In box S, 12 of the pens were green pens. What fraction of Reggie's pens were green pens?
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PSLE
Reggie kept pens in boxes R and S. Box R contained four times as many pens as box S. In box R, 15 of the pens were green pens. In box S, 12 of the pens were green pens. What fraction of Reggie's pens were green pens?