Aflati cifrele a,b si c stiind ca 0,abc+0,cba=0,646

Răspuns :

0,abc+0,cba=646
abc+cba=646
⇒a=c
b=4/2
b=2
a+c=6
a ∈ {0,1,2,3,4,5,6}
c ∈ {0,1,2,3,4,5,6}