In a class of 49 students, the ratio of girls to boys is 4:3
In a class of 49 students, the ratio of girls to boys is 4:3. If 4 girls leave the class, the ratio of girls to boys would be
- 11:7
- 8:7
- 6:5
- 9:8
Answer
Let the number of girls and boys be 4x and 3x.
4x + 3x = 49
7x = 49
x = 7
So, the number of girls and boys are 28 and 21 respectively.
After 4 girls leave the class, number of girls = 28 - 4 = 24
New ratio of girls to boys = 24:21
= 8:7
The correct option is B.