Question

55%students in a school are girls .Find the total number of students in the school if 270 are boys.

Answer 1

total no. of boys = 270
no. of percentage of girls = 55%
let the total no. of students be x
atq
270+55/100
270+11/20
5411/20

Answer 2

Answer:-

There are 600 total students in the school.

Number of boys = 330

Number of girls = 270.

Solution:-

Given :

Percentage of Boys in school = 55%

Girls in the school = 270

To find :

Total number of students in the school

Solution :

If 55% are boys, % of girls would be =

⇒ 100 - 55

⇒ 45 %

Girls in the school are 45%

Girls present in the school are 270.

Consider the total number of students in the school as x

________________________________

$45\% \: of \: x = 270 \\ \\ \frac{45}{100} \times x = 270 \\ \\ 45x = 270 \times 100 \\ \\ 45x = 27000 \\ \\ x = 100$

Total students = 600.

Number of girls =

$600 - 270 = 330$