PSLE A bag contains cards of three different colours.
12 of the cards are green. The ratio of the number of yellow cards to that of blue cards is 8 : 1. What is the ratio of the number of yellow cards to that of green cards?
Green |
Yellow |
Blue |
Total |
1x9 |
1x9 |
2x9 |
|
8x1 |
1x1 |
|
9 u |
8 u |
1 u |
18 u |
The total number of blue and yellow cards is the combined repeated identity.
Make the total number blue and yellow cards the same.
LCM of 1 and 9 = 9
Yellow : Green
8 : 9
Answer(s): 8 : 9