PSLE A bag contains cards of three different colours.
12 of the cards are red. The ratio of the number of yellow cards to that of brown cards is 5 : 3. What is the ratio of the number of red cards to that of brown cards?
Red |
Yellow |
Brown |
Total |
1x8 |
1x8 |
2x8 |
|
5x1 |
3x1 |
|
8 u |
5 u |
3 u |
16 u |
The total number of brown and yellow cards is the combined repeated identity.
Make the total number brown and yellow cards the same.
LCM of 1 and 8 = 8
Red : Brown
8 : 3
Answer(s): 8 : 3