Question

In a school, out of 1220 students, 300 are girls. find the ratio of

(a) Number of girls to the total number of students.
(b) Number of boys to the number of girls.
(6) Number of boys to the total number of students.​

Answer 1

AnswEr :

• Total Students = 1220
• Girls = 300

↠ Boys = Total Students - Girls

↠ Boys = 1220 - 300

↠ Boys = 920

_______________________________

(a) Number of girls to the total number of students.

⇒ Girls : Total Students

⇒ 300 : 1220

• Dividing both term by 20

⇒ 15 : 61

∴ Girls : Total Students = 15 : 61

_______________________________

(b) Number of boys to the number of girls.

⇒ Boys : Girls

⇒ 920 : 300

• Dividing both term by 20

⇒ 46 : 15

∴ Boys : Girls = 46 : 15

_______________________________

(c) Number of boys to the total number of students.

⇒ Boys : Total Students

⇒ 920 : 1220

• Dividing both term by 20

⇒ 46 : 61

∴ Boys : Total Students = 46 : 61

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Answer 2

${\boxed{\boxed{Answer}}}$

$<font color="blue">$

$\red{Total \: number \: of \: students = 1200}$

$\red{Number \: of \: girls = 300}$

$\red{Number \: of \: boys = 1220 - 300 = 920}$

(a) Number of girls=300

Total number of students=1220

Ratio of number of girls to total number of students:-

$→ \frac{300}{1220}$

$→ \frac {15}{61} =15:61$

•°•Ratio =15:61

$<font color="green">$

(b) Number of boys=920

Number of girls=300

Ratio:-

$→ \frac{920}{300}$

$→ \frac{46}{15} =46:15$

•°•Ratio=46:15

$<font color="brown">$

(c) Number of students=1220

Number of boys=920

Ratio:-

$</strong><strong>→</strong><strong> \frac{920}{1220}$

$</strong><strong>→</strong><strong> \frac{46}{61}</strong><strong> </strong><strong>=</strong><strong>4</strong><strong>6</strong><strong>:</strong><strong>6</strong><strong>1</strong><strong>$

•°•Ratio=46:61

$<font color="black">$

Hope it helps.

Answer with quality

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