PSLE A bag contains stickers of three different colours.
14 of the stickers are red. The ratio of the number of brown stickers to that of purple stickers is 3 : 1. What is the ratio of the number of brown stickers to that of red stickers?
Red |
Brown |
Purple |
Total |
1x4 |
3x4 |
4x4 |
|
3x3 |
1x3 |
|
4 u |
9 u |
3 u |
16 u |
The total number of purple and brown stickers is the combined repeated identity.
Make the total number purple and brown stickers the same.
LCM of 3 and 4 = 12
Brown : Red
9 : 4
Answer(s): 9 : 4