PSLE A bag contains cards of three different colours.
14 of the cards are orange. The ratio of the number of yellow cards to that of blue cards is 1 : 3. What is the ratio of the number of orange cards to that of blue cards?
Orange |
Yellow |
Blue |
Total |
1x4 |
3x4 |
4x4 |
|
1x3 |
3x3 |
|
4 u |
3 u |
9 u |
16 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 3 and 4 = 12
Orange : Blue
4 : 9
Answer(s): 4 : 9