60. % of boys number of girls 400 number of boys and total number of students

Question:

In a school 60 percent of the students are boy and number of girls is 400.find number of the boys and total students in the school

Total number of students in the school  = 1000

Total number of boys in the school = 600

Step-by-step explanation:

Given:

Boys percentage = 60

Number of girls = 400

To Find:

Number of the boys= ?

Total students in the school = ?

Solution:

Let the Total number students in the school be x

Let the number of boys be y

60 percent of the students are boy , it can be written as

=> 60% of x = y--------------------------------------------(1)

Total number of students x is

=> 60% of x + 400 = x

=>

=>

=>x - 0.6x = 400

=>0.4x = 400

=>

=> x=1000----------------------------------------------(2)

So the total number of students is 1000

Substituting (2) in (1)

=> 60% of 1000 = y

=>

=>

=> 600 = y

k

step-by-step explanation:

domit