Question

se considera sirul 1,1,2,1,2,3,1,2,3,4,.........Pe pozitia 50 se afla numarul: a)2 b)3 c)5 d)7

Answer 1

Daca nu stii deloc cum s-ar rezolva,poti sa continui sirul:
1,1,2,1,2,3,1,2,3,4,1,2,3,4,5,1,2,3,4,5,6,1,2,3,4,5,6,7,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,9,1,2,3,4,5.....
5 este al 50-lea termen.
Sper ca te-am ajutat.