Question
PSLE
Risa has a number of notebooks in three colours: red, orange and yellow. 311 of the notebooks are red. The number of red notebooks is twice the number of orange notebooks. What fraction of the notebooks is yellow?
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PSLE
Risa has a number of notebooks in three colours: red, orange and yellow. 311 of the notebooks are red. The number of red notebooks is twice the number of orange notebooks. What fraction of the notebooks is yellow?