Question
PSLE
A bag contains coins of three different colours. 13 of the coins are purple. The ratio of the number of red coins to that of yellow coins is 1 : 2. What is the ratio of the number of red coins to that of purple coins?
2 m

Click button first when a symbol is required. X

PSLE
A bag contains coins of three different colours. 13 of the coins are purple. The ratio of the number of red coins to that of yellow coins is 1 : 2. What is the ratio of the number of red coins to that of purple coins?