Question

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Answer 1

⛦ Given :+

• 45 % of the students are boys.
• The total number of students = 880

⛦ To find :-

• The number of girls in the school.

⛦ Solution :-

• First we will try to find the number of boys in the school.

So,

${\sf{\text{Number of boys= 45\%of 880}}}$

${\sf{\text{Number of boys=}}}\sf\dfrac{45}{100}\times{880}$

${\sf{\text{Number of boys=}}}\sf\dfrac{\cancel{45}^9}{\cancel{10}_2\cancel{0}}\times{88\cancel{0}}$

${\sf{\text{Number of boys=}}}\sf\dfrac{9}{\cancel{2}_1}\times{\cancel{88}^{44}}$

${\sf{\text{Number of boys=}}}\sf{9\times44}$

${\underline{\boxed{\sf{\text{\pink{Number of boys=396}}}}}}$

Now,

The number of girls in the school is easy to find.

No. of girls = Total students - No. of boys

${\sf{\text{Number of girls=880-396}}}$

${\underline{\boxed{\sf{\text{\blue{Number of girls=484}}}}}}$

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Answer 2

Proper question :

45% of students in a school are boys. Of the total number of students in the school is 880, find the number of girls in the school.

Given :

• 45% of students in a school are boys.
• Total number of students in the school is 880.

To find :

• The number of girls in the school = ?

SOLUTION :

To find the number of girls in the school = ?

First, We need to find the number of boys in the school.

Number of boys = 45% of 880.

Number of boys = $\sf \dfrac {45}{100} \times 880$

Number of boys = $\sf \dfrac {\cancel {45}}{\cancel{100}} \times 88{\cancel 0}$

Number of boys = $\sf \dfrac {9}{\cancel 2} \times {\cancel {88}}$

Number of boys = $\sf 9 \times 44$

$\qquad \large \blue {\underline {\boxed {\dag \ \bf Number \ of \ boys \ = \ 396}}}$

Now,

To find the number of girls in the school = ?

Number of girls = Total number of students - Number of boys.

$\sf Number \ of \ girls \ = \ 880 \ - \ 396$

$\qquad \large \purple {\underline {\boxed {\dag \ \bf Number \ of \ girls \ = \ 484}}}$

$\therefore$ The number of girls are 484.