PSLE A bag contains beads of three different colours.
12 of the beads are orange. The ratio of the number of red beads to that of purple beads is 1 : 1. What is the ratio of the number of orange beads to that of purple beads?
Orange |
Red |
Purple |
Total |
1x2 |
1x2 |
2x2 |
|
1x1 |
1x1 |
|
2 u |
1 u |
1 u |
4 u |
The total number of purple and red beads is the combined repeated identity.
Make the total number purple and red beads the same.
LCM of 1 and 2 = 2
Orange : Purple
2 : 1
Answer(s): 2 : 1