uses crt;
const tb=30000;
var tt, dg, sp: real;
ht, dc: string;
begin
clrscr;
write('Nhap ho ten khach hang: ');
readln(ht);
write('Nhap dia chi khach hang: ');
readln(dc);
write('Nhap don gia: ');
readln(dg);
write('Nhap so phut su dung: ');
readln(sp);
tt:=dg*sp+tb;
write('Quy khach phai tra: ',tt,' dong.');
readln
end.
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