Question

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

Answer 1

hey dear
here is your answer

if percent of boys are 70% than girls percent will be 30%
so, let the total students be X
30/100×X = 540
X = 540×100/30 = 1800
so no. of total students are = 1800
no. of boys = 1800-540 = 1260boys.
so no. of boys are 1260.

hope it helps ☺

Answer 2

If 70% are boys then 30% are girls
30% of x ( where x is the total no of students) = 540( no of girls)
30/100*x=540
X = 540*100/30
X = 1800( total no of students)
No of girls=540
Therefore no of boys =1800-540
= 1260
Ans there are 1260 boys in a school