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