Question
PSLE
A bag contains coins of three different colours. 18 of the coins are yellow. The ratio of the number of orange coins to that of brown coins is 2 : 1. What is the ratio of the number of orange coins to that of yellow coins?
2 m

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PSLE
A bag contains coins of three different colours. 18 of the coins are yellow. The ratio of the number of orange coins to that of brown coins is 2 : 1. What is the ratio of the number of orange coins to that of yellow coins?