Răspuns:
Explicație pas cu pas:
1200 + 10/100 * 1200 + 10/100 * ( 1200 + 10/100 * 1200)+ 10/100 * (1200 + 10/100 * 1200 + 10/100 * (1200 +10/100 * 1200))=
= 1200 + 120 + 10/100 * (1200 + 120) + 10/100 * (1200 + 120 +10/100*(1200 + 120))=
1320 + 10/100 * 1320 + 10/100 * (1320 + 10/100 * 1320)=
= 1320 + 132 + 10/100 * (1320 + 132)=
= 1452 + 10/100 * 1452 =
=1452 + 145,2=
= 1597,2 lei