Program trung_binh_cong;
uses crt;
var a,b,c: real;
begin
clrscr;
write('nhap so a , b , c =' ,); readln(a,b,c):
writeln('trung binh cong cua 3 so = ' ,(a+b+c) / 3;
readln;
end.
Program trung_binh_cong;
uses crt;
var a,b,c: real;
begin
clrscr;
write('nhap so a , b , c =' ,); readln(a,b,c):
writeln('trung binh cong cua 3 so = ' ,(a+b+c) / 3);
readln;
end.