PSLE A bag contains cards of three different colours.
14 of the cards are brown. The ratio of the number of green cards to that of yellow cards is 3 : 4. What is the ratio of the number of green cards to that of brown cards?
Brown |
Green |
Yellow |
Total |
1x7 |
3x7 |
4x7 |
|
3x3 |
4x3 |
|
7 u |
9 u |
12 u |
28 u |
The total number of yellow and green cards is the combined repeated identity.
Make the total number yellow and green cards the same.
LCM of 3 and 7 = 21
Green : Brown
9 : 7
Answer(s): 9 : 7