PSLE A bag contains beads of three different colours.
14 of the beads are green. The ratio of the number of red beads to that of blue beads is 3 : 1. What is the ratio of the number of red beads to that of green beads?
Green |
Red |
Blue |
Total |
1x4 |
3x4 |
4x4 |
|
3x3 |
1x3 |
|
4 u |
9 u |
3 u |
16 u |
The total number of blue and red beads is the combined repeated identity.
Make the total number blue and red beads the same.
LCM of 3 and 4 = 12
Red : Green
9 : 4
Answer(s): 9 : 4