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