PSLE A bag contains cards of three different colours.
15 of the cards are yellow. The ratio of the number of green cards to that of red cards is 2 : 3. What is the ratio of the number of green cards to that of yellow cards?
Yellow |
Green |
Red |
Total |
1x5 |
4x5 |
5x5 |
|
2x4 |
3x4 |
|
5 u |
8 u |
12 u |
25 u |
The total number of red and green cards is the combined repeated identity.
Make the total number red and green cards the same.
LCM of 4 and 5 = 20
Green : Yellow
8 : 5
Answer(s): 8 : 5