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?
Green |
Purple |
Blue |
Total |
1x4 |
1x4 |
2x4 |
|
1x1 |
3x1 |
|
4 u |
1 u |
3 u |
8 u |
The total number of blue and purple beads is the combined repeated identity.
Make the total number blue and purple beads the same.
LCM of 1 and 4 = 4
Green : Blue
4 : 3
Answer(s): 4 : 3