PSLE A bag contains stickers of three different colours.
110 of the stickers are purple. The ratio of the number of orange stickers to that of red stickers is 1 : 4. What is the ratio of the number of purple stickers to that of red stickers?
Purple |
Orange |
Red |
Total |
1x5 |
9x5 |
10x5 |
|
1x9 |
4x9 |
|
5 u |
9 u |
36 u |
50 u |
The total number of red and orange stickers is the combined repeated identity.
Make the total number red and orange stickers the same.
LCM of 9 and 5 = 45
Purple : Red
5 : 36
Answer(s): 5 : 36