PSLE A bag contains stickers of three different colours.
12 of the stickers are purple. The ratio of the number of blue stickers to that of yellow stickers is 4 : 3. What is the ratio of the number of blue stickers to that of purple stickers?
Purple |
Blue |
Yellow |
Total |
1x7 |
1x7 |
2x7 |
|
4x1 |
3x1 |
|
7 u |
4 u |
3 u |
14 u |
The total number of yellow and blue stickers is the combined repeated identity.
Make the total number yellow and blue stickers the same.
LCM of 1 and 7 = 7
Blue : Purple
4 : 7
Answer(s): 4 : 7