PSLE A bag contains marbles of three different colours.
14 of the marbles are red. The ratio of the number of brown marbles to that of blue marbles is 2 : 3. What is the ratio of the number of brown marbles to that of red marbles?
Red |
Brown |
Blue |
Total |
1x5 |
3x5 |
4x5 |
|
2x3 |
3x3 |
|
5 u |
6 u |
9 u |
20 u |
The total number of blue and brown marbles is the combined repeated identity.
Make the total number blue and brown marbles the same.
LCM of 3 and 5 = 15
Brown : Red
6 : 5
Answer(s): 6 : 5