Question

In a school out of 400 students 40%are boys. Find the % of girls. Also find the number of girls

Answer 1

Step-by-step explanation:

Total number of students = 400

% of boys = 40%

% of girls

$= (100 - 40)\% = 60\%$

Number of girls =

$60\% \: of \: 400 \\ = \frac{60}{100} \times 400 \\ = 240$

Thus, there are 240 girls.

Om Namah Shivaya

Debasish Biswal

Answer 2

Given:-

• $\sf{Number\: of \: students = 400}$
• $\sf{Percentage\: of\: boys = 40\%}$

To find:-

• Percentage of girls
• Number of girls

Solution:-

$\sf{Number\:of\:students\: = 400}$

$\sf{Percentage \:of\: boys = 40\%}$

$\sf{Number\:of\:boys = 40\%\:of \:400}$

$\sf{Number\: of \:boys = \dfrac{40}{100}\times 400}$

$\sf{Number \:of\: boys = 160}$

Now,

$\sf{Number \:of \:girls = 400 - 160}$

$\sf{Number\: of \:girls = 240}$

$\sf{Percentage \: of \:girls = \dfrac{240}{400}\times 100}$

$\sf{Percentage\:of\:girls = 60\%}$

$\sf{\therefore Number\:of\:girls \: = 240}$

$\sf{Percentage\:of\:girls = 60\%\:[Answer]}$