Question

1. In a school, 5/9 of the children are boys and the number of girls is 100.Find the number of boys. please give me step-by-step solution please.​

Answer 1

Answer:

X be number of students

4/5 are boys

So, number of girls is 1/5 of X

1)5 of X=100

X=500

Number of boys =400

Answer 2

Answer:

no of boys is=

$\frac{5}{9} x$

total children=

and no of girls

$\frac{4}{9} x = 100 \\ x = \frac{100 \times 9}{4} \\ x= 25 \times 9 \\ x = 255$

no of boys

$= \frac{5}{9} \times 225 \\ = 5 \times 25 \\ = 125$