Question

if 70% students in a school are girls and the number of boys is 504'then the number of girls?

Answer 1

$\huge\bold\pink{SOLUTION:-}$

Let the number of girls be 'x'

% of girls = 70%

Therefore,

% of boys = 30 %

Now, according to the question

$\frac{30}{100} \times x = 504$

$= > x = 504 \times \frac{100}{30}$

$= > x = 504 \times \frac{10}{3}$

=> x = 1680

Answer 2

Let the total no of students be x.

Given that

30/ 100 of x = 504

Therefore

x= 504 ×10 /3

= 1680

So

the no of girls in that school = the total no of students - the no of boys in that school

= x -504

=1680 - 504

=1176 girls (answer)