PSLE A bag contains cards of three different colours.
12 of the cards are red. The ratio of the number of purple cards to that of orange cards is 3 : 2. What is the ratio of the number of purple cards to that of red cards?
Red |
Purple |
Orange |
Total |
1x5 |
1x5 |
2x5 |
|
3x1 |
2x1 |
|
5 u |
3 u |
2 u |
10 u |
The total number of orange and purple cards is the combined repeated identity.
Make the total number orange and purple cards the same.
LCM of 1 and 5 = 5
Purple : Red
3 : 5
Answer(s): 3 : 5