Question
PSLE
A bag contains beads of three different colours. 12 of the beads are green. The ratio of the number of purple beads to that of blue beads is 1 : 3. What is the ratio of the number of green beads to that of blue beads?
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PSLE
A bag contains beads of three different colours. 12 of the beads are green. The ratio of the number of purple beads to that of blue beads is 1 : 3. What is the ratio of the number of green beads to that of blue beads?