PSLE A bag contains cards of three different colours.
19 of the cards are green. The ratio of the number of blue cards to that of orange cards is 1 : 1. What is the ratio of the number of green cards to that of orange cards?
Green |
Blue |
Orange |
Total |
1x1 |
8x1 |
9x1 |
|
1x4 |
1x4 |
|
1 u |
4 u |
4 u |
9 u |
The total number of orange and blue cards is the combined repeated identity.
Make the total number orange and blue cards the same.
LCM of 8 and 2 = 8
Green : Orange
1 : 4
Answer(s): 1 : 4