Question

The total number of students in a school is 1320, 45% of the students in the school are boys . Find the girl students in the school?

Answer 1

Answer :

Number of girls = 2400

_____________________

Step-by-step-explanation :

Let the number of girls be x.

Given in the question that, total number of is 1320.

45% of the students in the school are boys.

Now,

Percentage of girls in the school = (100 - 45)%

⇒ 55%

55% of the students in the school are girls.

We have to find the number of girls.

According to question

⇒ $\sf{55\% \:of \:girls\: =\: 1320}$

⇒ $\sf{\frac{55}{100}\:\times\:x\:=\:1320}$

⇒ $\sf{55\:\times\:x\:=\:1320\:\times\:100}$

⇒ $\sf{55\:\times\:x\:=\:132000}$

⇒ $\sf{x\:=\:\frac{132000}{55}}$

$\implies\:\sf{x\:=\:2400}$

•°• Number of girls in the school is 2400.

Answer 2

Answer:

Step-by-step explanation:

Given :-

Total Number of students = 1320

Percentage of Boys = 45 %

To Find :-

Number of girls

Solution :-

Let the number of girls be x.

According to the Question,

Percentage of girls in the school = (100 - 45)%

Percentage of girls in the school = 55 %

Solving to find numbers of girls,

$\sf\implies 55 \: \% \: of \: girls=1320$

$\sf\implies\frac{55}{100}\times x= 1320$

$\sf\implies 55\times x=1320 \: \times100$

$\sf\implies 55\times x =132000$

$\sf\implies x=\frac{132000}{55}$

$\bf\implies x=2400$

Hence, the number of girls are 2400.