Question

in our school 4 by 9 of the students are boys and the number of girls is 775 find the number of boys in the school​

Answer 1

Step-by-step explanation:

let the total no. be 1

so,girls =1-4/9=5/9

5/9=775

1=775×9/5=(155×9)=1395

no. of boys =1395-775=625

Answer 2

Step-by-step explanation:

Let us suppose the number of students in the school be x

$number \: of \: boys = \frac{4}{9}x$

number of girls = 775

A.T.Q

$775 + \frac{4}{9} x = x$

$775 = x - \frac{4}{9} x$

$775 = \frac{9x - 4x}{9}$

$775 = \frac{5x}{9}$

$\frac{775 \times 9}{5 } = x$

$1395 = x$

Therefore, number of boys in school are 1395