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 gold to those who did not score gold is 4 : 1. The ratio of the boys who scored gold to those who did not score gold is 3 : 2. What is the ratio of girls who scored gold to the girls who did not score gold?
Boys |
Girls |
Total |
1x5 = 5 u |
2x5 = 10 u |
3x5 = 15 u |
Gold |
No gold |
Total |
4x3 = 12 u |
1x3 = 3 u |
5x3 = 15 u |
Boys |
Girls |
Total |
5 u |
10 u |
15 u |
Gold |
No Gold |
Gold |
No gold |
|
3 u |
2 u |
9 u |
1 u |
15 u |
The total number of children remains unchanged. Make the total number of children the same. LCM of 3 and 5 is 15.
Girls who scored gold : Girls who did not score gold
9 : 1
Answer(s): 9 : 1