Answer:
Step-by-step explanation:
4:3 total is 7
8:6 total is 14
12:9 total is 21
So there are 9 girls.
Answer: 9
Step-by-step explanation:
Given : There are 21 students in a class.
It is given that the ratio of the number of boys to the number of girls is 4:3.
Let 4x be the number of boys and 3x be the number of girls in class.
According to the question , we have
[tex]3x+4x=21\\\\\Rightarrow\ 7x=21\\\\\Rightarrow\ x=\dfrac{21}{7}=3[/tex]
Now, the number of girls in class = 3x= 3(3)=9
Hence, there are 9 girls in class.
