Răspuns:
Explicație pas cu pas:
Suma initiala ____ ____ ____ ____ ____ ____ ____ ____ ____
prima data ____
Rest ____ ____ ____ ____ ____ ____ ____ ____
a doua oara ____ ____
Rest ____ ____ ____ ____ ____ ____
a treia oara ____ ____ ____ ____
Rest ____ ____ = 200 lei
____ = 200 : 2 = 100 lei
Suma initiala 9 x 100 = 900 lei