PSLE A bag contains marbles of three different colours.
16 of the marbles are green. The ratio of the number of orange marbles to that of blue marbles is 9 : 1. What is the ratio of the number of orange marbles to that of green marbles?
Green |
Orange |
Blue |
Total |
1x2 |
5x2 |
6x2 |
|
9x1 |
1x1 |
|
2 u |
9 u |
1 u |
12 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 5 and 10 = 10
Orange : Green
9 : 2
Answer(s): 9 : 2