PSLE A bag contains erasers of three different colours.
14 of the erasers are brown. The ratio of the number of red erasers to that of yellow erasers is 5 : 3. What is the ratio of the number of brown erasers to that of yellow erasers?
Brown |
Red |
Yellow |
Total |
1x8 |
3x8 |
4x8 |
|
5x3 |
3x3 |
|
8 u |
15 u |
9 u |
32 u |
The total number of yellow and red erasers is the combined repeated identity.
Make the total number yellow and red erasers the same.
LCM of 3 and 8 = 24
Brown : Yellow
8 : 9
Answer(s): 8 : 9