Question

Trei apartamente costa impreuna 901100 lei.Daca primele costa impreuna 600634 lei iar ultimele doua costa impreuna 415850 lei.Afla cat costa fiecare apartament

Answer 1

$a+b+c=901100(1)$
$a+b=600634(2)$
$b+c=415850(3)$
$(1),(2)=\ \textgreater \ 600634+c=901100=\ \textgreater \ c=901100-600634=300466$
$(1),(3)=\ \textgreater \ a+415850=901100=\ \textgreater \ a=901100-415850=485250$
$(2)=\ \textgreater \ 485250+b=600634=\ \textgreater \ b=600634-485250=115384$