Question

. The total number of students in a school is 560 out of which 60% are boys what is the total number of girls

Answer 1

$\sf\large\underline{Given:}$

$\rm{\implies Total\:_{(students)}=560}$

$\rm{\implies Number\:_{(boys)}=60\%}$

$\sf\large\underline{To\: Find:}$

$\rm{\implies Number\:_{(girls)}=?}$

$\sf\large\underline{Solution:}$

• At first calculate the percentage of girls than calculate the number of boys after decrease the number of boys out of 560]

$\tt{\implies percentage\:_{(girls)}=100\%-60\%=40\%}$

$\rm{\implies Number\:_{(boys)}=560\times\dfrac{60}{100}}$

$\rm{\implies Number\:_{(boys)}=56\times\:6}$

$\rm{\implies Number\:_{(boys)}=336}$

• Now, calculate the number of girls]

$\rm{\implies Number\:_{(girls)}=560\times\dfrac{40}{100}}$

$\rm{\implies Number\:_{(girls)}=56\times\:4}$

$\rm{\implies Number\:_{(girls)}=224}$

• Second way to find no of girls]

$\rm{\implies Number\:_{(girls)}=Total\:_{(students)}-Number\:_{(boys)}}$

$\rm{\implies Number\:_{(girls)}=560-336}$

$\rm{\implies Number\:_{(girls)}=224}$

$\sf\large{Hence,}$

$\bf{\implies Number\:_{(girls)}=224}$

Answer 2

Hi there!

$\huge\sf\red{Given\mapsto}$

Total No.Of Students :- 560

Boys :- 60%

$\huge\sf\red{To\:Find\mapsto}$

No. Of Girls

$\huge\sf\red{Solution\mapsto}$

60% of 560

60/100 × 560

$\sf{336}$

Girls :-

$\sf{Total\:No.\:Of\:Students\:-\:Boys}$

$\sf{560 - 336 = 224}$

So, No. Of Girls = 224.