Question

in a class of 40 students the number of girls is 3/4 of the the boys find the number of girls in the class​

Answer 1

Answer:

Let the no. of boys in class =x

No. of girls in class =y

Given, Total no. of students =40

⇒x+y=40 (equation 1)

But according to problem,

No. of girls is three fifth of boys,

⇒y=

5

3

(x) (equation 2)

From equation 1 and 2,

x=25y=15

No. of boys in class =25

Answer 2

Answer:

1. let the no. of girls in the class be = x.
2. the total no. of students = 40.
3. in the question, it says that the no. of girls is three by fourth to the no. of boys.
4. then,x =3/4 × 40 (4 and 40 divide and get 10 then multiply 3 with 10 and get 30)
5. the no. of girls is 30.