PSLE A bag contains beads of three different colours.
12 of the beads are purple. The ratio of the number of brown beads to that of blue beads is 2 : 3. What is the ratio of the number of brown beads to that of purple beads?
Purple |
Brown |
Blue |
Total |
1x5 |
1x5 |
2x5 |
|
2x1 |
3x1 |
|
5 u |
2 u |
3 u |
10 u |
The total number of blue and brown beads is the combined repeated identity.
Make the total number blue and brown beads the same.
LCM of 1 and 5 = 5
Brown : Purple
2 : 5
Answer(s): 2 : 5