Question

if 70% of the students in a school are boys and the number of girls is 540, find the number of boys in the school
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Answer 1

Answer:

The Number of Boys is 1260.

Step-by-step explanation:

Given :

Boys = 70%

Girls = 540

To find :

Number of boys in the school

Solution :

Percentage of girls =

⇒ 100 - 70

⇒ 30%

$\rule{300}{1.5}$

Girls'percentage = 30%

Girls in numbers = 540

Let the total number of students be y

⇒ 30% of y = 540

⇒ 30/100 × y = 540

⇒ 30y = 540 × 100

⇒ 30y = 54000

⇒ y = 54000/30

⇒ y = 1800

Total Students = 1800

$\rule{300}{1.5}$

Number of boys =

⇒ 1800 - 540

⇒ 1260

Boys = 1260

$\therefore$ The Number of Boys is 1260.