Question

please help me only send answer​

Answer 1

Explanation:

At first , add up all the students in the class

I.e (20+30=50), now, let 'x' is the percentage of girls in the class.

The equation will be,

50*(X/100)= 20 ( this equation is so, because the 'x' percentage of girls is 20)

So , the value of 'x' will be

X= 40 % ( that's the percentage of girls in the class)