PSLE A bag contains coins of three different colours.
12 of the coins are purple. The ratio of the number of green coins to that of brown coins is 1 : 1. What is the ratio of the number of green coins to that of purple coins?
Purple |
Green |
Brown |
Total |
1x2 |
1x2 |
2x2 |
|
1x1 |
1x1 |
|
2 u |
1 u |
1 u |
4 u |
The total number of brown and green coins is the combined repeated identity.
Make the total number brown and green coins the same.
LCM of 1 and 2 = 2
Green : Purple
1 : 2
Answer(s): 1 : 2