PSLE A bag contains stickers of three different colours.
110 of the stickers are brown. The ratio of the number of purple stickers to that of green stickers is 2 : 3. What is the ratio of the number of purple stickers to that of brown stickers?
Brown |
Purple |
Green |
Total |
1x5 |
9x5 |
10x5 |
|
2x9 |
3x9 |
|
5 u |
18 u |
27 u |
50 u |
The total number of green and purple stickers is the combined repeated identity.
Make the total number green and purple stickers the same.
LCM of 9 and 5 = 45
Purple : Brown
18 : 5
Answer(s): 18 : 5