PSLE A bag contains beads of three different colours.
16 of the beads are orange. The ratio of the number of blue beads to that of purple beads is 9 : 1. What is the ratio of the number of orange beads to that of purple beads?
Orange |
Blue |
Purple |
Total |
1x2 |
5x2 |
6x2 |
|
9x1 |
1x1 |
|
2 u |
9 u |
1 u |
12 u |
The total number of purple and blue beads is the combined repeated identity.
Make the total number purple and blue beads the same.
LCM of 5 and 10 = 10
Orange : Purple
2 : 1
Answer(s): 2 : 1