Question
PSLE
A bag contains beads of three different colours. 13 of the beads are blue. The ratio of the number of green beads to that of orange beads is 1 : 3. What is the ratio of the number of blue beads to that of orange beads?
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PSLE
A bag contains beads of three different colours. 13 of the beads are blue. The ratio of the number of green beads to that of orange beads is 1 : 3. What is the ratio of the number of blue beads to that of orange beads?