The ratio of the number of boys to the number of girls in a class is 1 : 5. The ratio of the pupils in the class who scored distinction to those who did not score distinction is 4 : 1. The ratio of the boys who scored distinction to those who did not score distinction is 1 : 4. What is the ratio of girls who scored distinction to the girls who did not score distinction?
Boys |
Girls |
Total |
1x5 = 5 u |
5x5 = 25 u |
6x5 = 30 u |
Distinction |
No distinction |
Total |
4x6 = 24 u |
1x6 = 6 u |
5x6 = 30 u |
Boys |
Girls |
Total |
5 u |
25 u |
30 u |
Distinction |
No Distinction |
Distinction |
No distinction |
|
1 u |
4 u |
23 u |
2 u |
30 u |
The total number of pupils remains unchanged. Make the total number of pupils the same. LCM of 6 and 5 is 30.
Girls who scored distinction : Girls who did not score distinction
23 : 2
Answer(s): 23 : 2