PSLE A bag contains coins of three different colours.
110 of the coins are red. The ratio of the number of blue coins to that of brown coins is 1 : 4. What is the ratio of the number of blue coins to that of red coins?
Red |
Blue |
Brown |
Total |
1x5 |
9x5 |
10x5 |
|
1x9 |
4x9 |
|
5 u |
9 u |
36 u |
50 u |
The total number of brown and blue coins is the combined repeated identity.
Make the total number brown and blue coins the same.
LCM of 9 and 5 = 45
Blue : Red
9 : 5
Answer(s): 9 : 5