Răspuns:
fie a,b si c trei numere consecutive
a+b+c=2013
a |.............|
b |.............|..+1
c |..............|+1+1
egalam seg:
2013-3=2010
aflam primul numar(a)
2010:3=670(a)
aflam al doilea numar:
670+1=671(b)
aflam al treilea numar:
671+1=672(c)
v:670+671+672=2013
corect
