PSLE A bag contains marbles of three different colours.
15 of the marbles are green. The ratio of the number of orange marbles to that of blue marbles is 4 : 3. What is the ratio of the number of orange marbles to that of green marbles?
Green |
Orange |
Blue |
Total |
1x7 |
4x7 |
5x7 |
|
4x4 |
3x4 |
|
7 u |
16 u |
12 u |
35 u |
The total number of blue and orange marbles is the combined repeated identity.
Make the total number blue and orange marbles the same.
LCM of 4 and 7 = 28
Orange : Green
16 : 7
Answer(s): 16 : 7