Question
PSLE
Ken kept pens in boxes X and Y. Box X contained four times as many pens as box Y. In box X, 13 of the pens were pink pens. In box Y, 12 of the pens were pink pens. What fraction of Ken's pens were pink pens?
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PSLE
Ken kept pens in boxes X and Y. Box X contained four times as many pens as box Y. In box X, 13 of the pens were pink pens. In box Y, 12 of the pens were pink pens. What fraction of Ken's pens were pink pens?