Question

12. There are 20 girls and 15 boys in a class.
(a) What is the ratio of number of girls to the number of boys?
(b) What is the ratio of number of girls to the total number of students in the class?​

Answer 1

Answer:

a) 4:3

b) 4:7

Step-by-step explanation:

a) no. of boys : no. of girls= 20:15 or 4:3

b) total students= 20+15=35

therefore, no. of girls: total students= 20:35 or 4:7

Hope this helps

Answer 2

Answer:

(a) 4:3 (b) 4:7

Step-by-step explanation:

(a)

20/15

= 4/3

= 4:3

(b)

20/35

= 4/7

= 4:7