Question

in a class of 56 students the number of boys is 2 upon fifth of the number of girls find the number of boys and girls

Answer 1

hey dear your answer is here
let
boys = x
girls=y

x+y=56
x=2y/5

solution of this in attachments

so boys =16
girls =40

Answer 2

let girls be x                      then boys are 2x/5                                                        [tex]x+2x/5 = 56 x=56 * 5 / 7 x=40[/tex]                                                                  
girls = 40  , boys = 16