PSLE A bag contains beads of three different colours.
19 of the beads are orange. The ratio of the number of purple beads to that of blue beads is 1 : 1. What is the ratio of the number of purple beads to that of orange beads?
Orange |
Purple |
Blue |
Total |
1x1 |
8x1 |
9x1 |
|
1x4 |
1x4 |
|
1 u |
4 u |
4 u |
9 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 8 and 2 = 8
Purple : Orange
4 : 1
Answer(s): 4 : 1