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There are 

5

 boys in a class of 

12

 students.

(a) What is the ratio of boys to girls?

(b) What is the ratio of girls to all students in the class?

 Feb 7, 2020
 #1
avatar+21707 
+1

If there are 5 boys in 12 person class   then there are   12-5 = 7 girls

ratio of boys to girls would be   5:7

ratio of girls to all students would then be   7:12

 Feb 7, 2020
 #2
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0

thanks

Guest Feb 7, 2020
 #3
avatar+288 
0

Well, since there are 5 boys of 12 students, we can subtract the total amount of students by the amount of boys to find the girls:

 

12 - 5 = 7.

 

Now that we know the amount of girls and boys, the ratio of boys to girls is:

 

a) 5 : 7.

 

And girls to all students is:

 

b) 7 : 12

 Feb 7, 2020

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