PSLE A bag contains coins of three different colours.
110 of the coins are red. The ratio of the number of green coins to that of blue coins is 3 : 1. What is the ratio of the number of green coins to that of red coins?
Red |
Green |
Blue |
Total |
1x4 |
9x4 |
10x4 |
|
3x9 |
1x9 |
|
4 u |
27 u |
9 u |
40 u |
The total number of blue and green coins is the combined repeated identity.
Make the total number blue and green coins the same.
LCM of 9 and 4 = 36
Green : Red
27 : 4
Answer(s): 27 : 4