PSLE A bag contains marbles of three different colours.
110 of the marbles are orange. The ratio of the number of brown marbles to that of blue marbles is 2 : 1. What is the ratio of the number of brown marbles to that of orange marbles?
Orange |
Brown |
Blue |
Total |
1x1 |
9x1 |
10x1 |
|
2x3 |
1x3 |
|
1 u |
6 u |
3 u |
10 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 9 and 3 = 9
Brown : Orange
6 : 1
Answer(s): 6 : 1