PSLE A bag contains stickers of three different colours.
17 of the stickers are yellow. The ratio of the number of red stickers to that of purple stickers is 8 : 1. What is the ratio of the number of yellow stickers to that of purple stickers?
Yellow |
Red |
Purple |
Total |
1x3 |
6x3 |
7x3 |
|
8x2 |
1x2 |
|
3 u |
16 u |
2 u |
21 u |
The total number of purple and red stickers is the combined repeated identity.
Make the total number purple and red stickers the same.
LCM of 6 and 9 = 18
Yellow : Purple
3 : 2
Answer(s): 3 : 2