Question
PSLE
Zeph kept pens in boxes N and P. Box N contained thrice as many pens as box P. In box N, 15 of the pens were blue pens. In box P, 14 of the pens were blue pens. What fraction of Zeph's pens were blue pens?
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PSLE
Zeph kept pens in boxes N and P. Box N contained thrice as many pens as box P. In box N, 15 of the pens were blue pens. In box P, 14 of the pens were blue pens. What fraction of Zeph's pens were blue pens?