program trung_binh_day;
uses crt;
var x:array[1..100] of integer;
n,i:byte;
t:integer;
begin
clrscr;
write('Nhap n: '); readln(n);
t:=0;
for i:=1 to n do
begin
write('X[',i,']= '); readln(x[i]);
t:=t+x[i];
end;
write('Trung binh cua day la: ',x/n:2:2);
readln;
end.