Question 1108290
x students
y others

{{{system(8x+12y=2540,x+y=245)}}}


{{{system(2x+3y=635,x+y=245)}}}
Use Elimination Method.


{{{system(2x+3y=635,2x+2y=490)}}}

{{{highlight(y=145)}}}
-
{{{highlight(x=345)}}}----students