Question

in the class 7 in a school girls are 60 % of total number of students and are 15 in number. find the ratio of the number of girls to the number of boys in that class

Answer 1

total strength let x
x60%=15

or x=15*100/60

=25

boys=10
reuired ratio3/2

Answer 2

let no of students be x
60x/100=15
x=25
no of boys=25-15=10
ratio=15/10=3/2