Question

60% students in a school are boys. find the total no. of students if there r 120 girls.!! urgent

Answer 1

total no of students= x
% of boys=60%
% of girls= 40%
no of girls =120
40% of x= 120
x=(120 X 100)/40
x=300
therefore total no of students= x=300

Answer 2

Let the total students be 100%
Then boys are 60%
Then girls are 40%
If girls are 120
40% is 120 then 100% is x
40----120
100---x
40x=12000
x=12000/40
x=300
Total number of students are 300