The ratio of the number of boys to the number of girls in a class is 1 : 2. The ratio of the children in the class who scored merit to those who did not score merit is 3 : 1. The ratio of the boys who scored merit to those who did not score merit is 3 : 1. What is the ratio of girls who scored merit to the girls who did not score merit?
| Boys |
Girls |
Total |
1x4 =
4 u |
2x4 =
8 u |
3x4 =
12 u |
| Merit |
No merit |
Total |
3x3 =
9 u |
1x3 =
3 u |
4x3 =
12 u |
| Boys |
Girls |
Total |
| 4 u |
8 u |
12 u |
| Merit |
No Merit |
Merit |
No merit |
|
| 3 u |
1 u |
6 u |
2 u |
12 u |
The total number of children remains unchanged. Make the total number of children the same. LCM of 3 and 4 is 12.
Girls who scored merit : Girls who did not score merit
6 : 2
3 : 1
Answer(s): 3 : 1
