PSLE A bag contains marbles of three different colours.
112 of the marbles are green. The ratio of the number of red marbles to that of brown marbles is 3 : 1. What is the ratio of the number of green marbles to that of brown marbles?
Green |
Red |
Brown |
Total |
1x4 |
11x4 |
12x4 |
|
3x11 |
1x11 |
|
4 u |
33 u |
11 u |
48 u |
The total number of brown and red marbles is the combined repeated identity.
Make the total number brown and red marbles the same.
LCM of 11 and 4 = 44
Green : Brown
4 : 11
Answer(s): 4 : 11