Question

In a classroom, the ratio of girls to boys is 2 : 5. There are 28 students in the classroom. Find the number of boys and the number of girls in the classroom. *

Answer 1

Answer:

2x+5y=28

x+5y=28/2

x=14-5y....................1

putting value of x in 2x+5y=28

2(14-5y)=28

14-5y=14

-5y=0

y=5

by putting y value in the eq1 you will get yoilur answer

Answer 2

Step-by-step explanation:

1. girls to boys = 2:5
2. total sum =
3. no. of boys == 5/7 ×28
4. 20 boys
5. no. of girls ==2/7×28
6. = 8 girls
7. ratio = boys to girls
8. 20:8
9. 5:2 ans.
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