Question
PSLE
A bag contains stickers of three different colours. 19 of the stickers are blue. The ratio of the number of brown stickers to that of purple stickers is 1 : 2. What is the ratio of the number of blue stickers to that of purple stickers?
2 m

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PSLE
A bag contains stickers of three different colours. 19 of the stickers are blue. The ratio of the number of brown stickers to that of purple stickers is 1 : 2. What is the ratio of the number of blue stickers to that of purple stickers?