PSLE A bag contains beads of three different colours.
112 of the beads are orange. The ratio of the number of purple beads to that of yellow beads is 2 : 1. What is the ratio of the number of purple beads to that of orange beads?
Orange |
Purple |
Yellow |
Total |
1x3 |
11x3 |
12x3 |
|
2x11 |
1x11 |
|
3 u |
22 u |
11 u |
36 u |
The total number of yellow and purple beads is the combined repeated identity.
Make the total number yellow and purple beads the same.
LCM of 11 and 3 = 33
Purple : Orange
22 : 3
Answer(s): 22 : 3