There are 625 students in a certain school, and the number of female students is 15 less than 3 / 5 of the number of male students. How many male and female students are there in this school? I'm in grade six

Suppose there are x boys and (3 / 5 × X-15) girls in this school

There are 48 students in class 5 (1) of our school, of which the number of boys is seven ninth of that of girls. How many boys are there in class 5 (1)?

There are x boys and 7 / 9x girls
x+7/9x=48
16/9x=48
x=48X9/16
x=27
A: there are 27 boys
What grade are you in? 0.0