Question
PSLE
A bag contains coins of three different colours. 15 of the coins are brown. The ratio of the number of yellow coins to that of green coins is 7 : 3. What is the ratio of the number of brown coins to that of green coins?
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PSLE
A bag contains coins of three different colours. 15 of the coins are brown. The ratio of the number of yellow coins to that of green coins is 7 : 3. What is the ratio of the number of brown coins to that of green coins?