PSLE A bag contains stickers of three different colours.
13 of the stickers are purple. The ratio of the number of yellow stickers to that of blue stickers is 1 : 2. What is the ratio of the number of purple stickers to that of blue stickers?
Purple |
Yellow |
Blue |
Total |
1x3 |
2x3 |
3x3 |
|
1x2 |
2x2 |
|
3 u |
2 u |
4 u |
9 u |
The total number of blue and yellow stickers is the combined repeated identity.
Make the total number blue and yellow stickers the same.
LCM of 2 and 3 = 6
Purple : Blue
3 : 4
Answer(s): 3 : 4