Program tinhtbcong;
Uses CRT;
Var a,b,c:integer;
Begin
Clrscr;
writeln('Nhap so thu nhat:');readln(a);
Writeln('Nhap so thu hai:');readln(b);
Writeln('Nhap so thu ba:');readln(c);
Writeln('Trung binh cong cua ba so la:',(a+b+c)/3);
Readln;
End.
uses crt;
var x,y,z:integer;
tbc:real;
begin
clrscr;
write('x='); readln(x);
write('y='); readln(y);
write('z='); readln(z);
tbc:=(x+y+z)/3;
writeln('tbc=',tbc:5:2