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?
Blue |
Green |
Orange |
Total |
1x2 |
2x2 |
3x2 |
|
1x1 |
3x1 |
|
2 u |
1 u |
3 u |
6 u |
The total number of orange and green beads is the combined repeated identity.
Make the total number orange and green beads the same.
LCM of 2 and 4 = 4
Blue : Orange
2 : 3
Answer(s): 2 : 3