The ratio of the number of girls to the number of boys in a class is 1 : 5. The ratio of the children in the class who scored distinction to those who did not score distinction is 4 : 1. The ratio of the girls who scored distinction to those who did not score distinction is 4 : 1. What is the ratio of boys who scored distinction to the boys who did not score distinction?
Girls |
Boys |
Total |
1x5 = 5 u |
5x5 = 25 u |
6x5 = 30 u |
Distinction |
No distinction |
Total |
4x6 = 24 u |
1x6 = 6 u |
5x6 = 30 u |
Girls |
Boys |
Total |
5 u |
25 u |
30 u |
Distinction |
No Distinction |
Distinction |
No distinction |
|
4 u |
1 u |
20 u |
5 u |
30 u |
The total number of children remains unchanged. Make the total number of children the same. LCM of 6 and 5 is 30.
Boys who scored distinction : Boys who did not score distinction
20 : 5
4 : 1
Answer(s): 4 : 1