PSLE A bag contains stickers of three different colours.
19 of the stickers are blue. The ratio of the number of brown stickers to that of purple stickers is 1 : 2. What is the ratio of the number of blue stickers to that of purple stickers?
Blue |
Brown |
Purple |
Total |
1x3 |
8x3 |
9x3 |
|
1x8 |
2x8 |
|
3 u |
8 u |
16 u |
27 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 8 and 3 = 24
Blue : Purple
3 : 16
Answer(s): 3 : 16