PSLE A bag contains stickers of three different colours.
16 of the stickers are orange. The ratio of the number of red stickers to that of purple stickers is 1 : 2. What is the ratio of the number of red stickers to that of orange stickers?
Orange |
Red |
Purple |
Total |
1x3 |
5x3 |
6x3 |
|
1x5 |
2x5 |
|
3 u |
5 u |
10 u |
18 u |
The total number of purple and red stickers is the combined repeated identity.
Make the total number purple and red stickers the same.
LCM of 5 and 3 = 15
Red : Orange
5 : 3
Answer(s): 5 : 3