Question
PSLE
A bag contains stickers of three different colours. 110 of the stickers are blue. The ratio of the number of purple stickers to that of yellow stickers is 2 : 1. What is the ratio of the number of purple stickers to that of blue stickers?
2 m

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PSLE
A bag contains stickers of three different colours. 110 of the stickers are blue. The ratio of the number of purple stickers to that of yellow stickers is 2 : 1. What is the ratio of the number of purple stickers to that of blue stickers?