Question
PSLE
A bag contains coins of three different colours. 16 of the coins are brown. The ratio of the number of purple coins to that of orange coins is 3 : 1. What is the ratio of the number of purple coins to that of brown coins?
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PSLE
A bag contains coins of three different colours. 16 of the coins are brown. The ratio of the number of purple coins to that of orange coins is 3 : 1. What is the ratio of the number of purple coins to that of brown coins?