Question

in a school forty percent of the students are girls and the number of boys is 600 find the number of girls in the school also find the total number of students in the school

Answer 1

Let x=number of girls in the class

Then x+27 =total number of students in the class

So our equation to solve is :

40% of (x+27)=x or

0.40(x+27)=x get rid of parens

0.40x+10.8=x subtract 0.40x from each side

0.40x-0.40x+10.8=x-0.40x collect like terms

10.8=0.60x divide both sides by 0.20

x=18-----------------------------number of girls in the class

CK

18+27=45

40% of 45=18

60% of 45=27

Answer 2

girls=40%

boys will be 60%

so 60%=600

the number girls is 400(because of 40%)

total students 1000