PSLE A bag contains coins of three different colours.
19 of the coins are red. The ratio of the number of brown coins to that of blue coins is 1 : 2. What is the ratio of the number of brown coins to that of red coins?
Red |
Brown |
Blue |
Total |
1x3 |
8x3 |
9x3 |
|
1x8 |
2x8 |
|
3 u |
8 u |
16 u |
27 u |
The total number of blue and brown coins is the combined repeated identity.
Make the total number blue and brown coins the same.
LCM of 8 and 3 = 24
Brown : Red
8 : 3
Answer(s): 8 : 3