Răspuns :
I + II =925 ,1225 - 925 =300(III) ,925 - 300 =625(II) ,300+625=925
x-primul nr
y-al doilea nr
x·y=925
(x+12)·y=1225
x·y+12·y=1225
925+12·y=1225
12·y=1225-925
12·y=200
y-al doilea nr
x·y=925
(x+12)·y=1225
x·y+12·y=1225
925+12·y=1225
12·y=1225-925
12·y=200