12+8=20+5=25 умножаем на 2=50-10=40:2=20 (20+25+50+50+20=175)
Var time:integer;
var summa:real;
var month:string;
k:=1.05;
begin
month := ' месяцев';
summa:=10000;
while summa<20000 do begin
summa:=summa*k;
time:=time+1;
end;writeln('Ответ:',time + month);
end.
Var n,count:longint;
begin read(n);
count:=0;
repeat n:=n div 10;
inc(count);
until n=0;
writeln(count);
<span>end.</span>